diff --git a/.github/workflows/.pipeline.yml b/.github/workflows/.pipeline.yml
index 7b5e07a40..536aeb482 100644
--- a/.github/workflows/.pipeline.yml
+++ b/.github/workflows/.pipeline.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         php: [ 7.3 ]
         os: [ ubuntu-18.04 ]
-        wordpress: [5.8, latest]
+        wordpress: [5.8.1, latest]
         experimental: [false]
         include:
           - php: 7.4
@@ -77,6 +77,7 @@ jobs:
           export PATH="$HOME/.composer/vendor/bin:$PATH"
           composer install --no-interaction
           composer global require "phpunit/phpunit:7.5.20"
+          composer require --dev yoast/phpunit-polyfills
 
       - name: Run Lint
         run: npm run lint
@@ -90,6 +91,7 @@ jobs:
 
       - name: Run Coverage
         run: composer require pcov/clobber; vendor/bin/pcov clobber; vendor/bin/phpunit --configuration phpunit.xml --coverage-clover coverage.xml
+        if: matrix.experimental == false
 
       - name: Run Frontend Tests
         run: |
@@ -102,6 +104,7 @@ jobs:
 
       - name: Upload Coverage to Codecov
         run: bash <(curl -s https://codecov.io/bash)
+        if: matrix.experimental == false
 
       - name: Prepare Build
         if: startsWith(github.ref, 'refs/tags/')
diff --git a/README.md b/README.md
index b8273fd74..09132916f 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,8 @@ This theme is named after Canadian media theorist Marshall McLuhan, who coined t
 ## Requirements
 
 * PHP >= 7.3
-* WordPress >= 5.8
-* Pressbooks >= 5.27.0
+* WordPress >= 5.8.2
+* Pressbooks >= 5.30.0
 
 ## Installation
 
@@ -41,7 +41,7 @@ Then, from the GitHub Updater interface, navigate to the "Install Theme" tab. En
 
 ## Changelog
 
-### 2.13.0
+### 2.14.0
 
-* See: https://github.com/pressbooks/pressbooks-book/releases/tag/2.13.0
+* See: https://github.com/pressbooks/pressbooks-book/releases/tag/2.14.0
 * Full release history available at: https://github.com/pressbooks/pressbooks-book/releases
diff --git a/assets/legacy/styles/_epub-house-style.scss b/assets/legacy/styles/_epub-house-style.scss
index 99936da68..4dda32b75 100644
--- a/assets/legacy/styles/_epub-house-style.scss
+++ b/assets/legacy/styles/_epub-house-style.scss
@@ -71,7 +71,7 @@ h6.short-title {
 
 /* Numberless chapters have no chapter numbers */
 
-div.chapter.numberless h3.chapter-number {
+div.chapter.numberless .chapter-number {
   display: none;
 }
 
diff --git a/assets/legacy/styles/_pdf-house-style.scss b/assets/legacy/styles/_pdf-house-style.scss
index 4c1a76e02..83dec6007 100644
--- a/assets/legacy/styles/_pdf-house-style.scss
+++ b/assets/legacy/styles/_pdf-house-style.scss
@@ -752,7 +752,7 @@ meta[name="pb-publisher-city"] {
 
 /* PART & CHAPTER STRINGS */
 
-.part-title-wrap h3.part-number {
+.part-title-wrap .part-number {
   string-set: part-number content();
 }
 
@@ -760,11 +760,11 @@ meta[name="pb-publisher-city"] {
   string-set: part-title content();
 }
 
-h3.chapter-number {
+.chapter-number {
   string-set: chapter-number content();
 }
 
-div.chapter.numberless h3.chapter-number {
+div.chapter.numberless .chapter-number {
   display: none;
 }
 
@@ -778,9 +778,9 @@ div.back-matter .back-matter-title-wrap > h1:first-of-type {
 /* "short title override" ... this sets short chapter title content (for running header) but does not display it.
 it can cause problems with spacing of things, so be careful to design around it */
 
-div.front-matter > div.ugc h6.short-title:first-of-type,
-div.chapter > div.ugc h6.short-title:first-of-type,
-div.back-matter > div.ugc h6.short-title:first-of-type {
+div.front-matter > div.ugc .short-title:first-of-type,
+div.chapter > div.ugc .short-title:first-of-type,
+div.back-matter > div.ugc .short-title:first-of-type {
   string-set: section-title content() !important; /* override running header */
   visibility: hidden; /* display:none breaks string-set: */
   font-size: 0;
diff --git a/assets/legacy/styles/_prince-toc.scss b/assets/legacy/styles/_prince-toc.scss
index bf071c7da..b712710e1 100644
--- a/assets/legacy/styles/_prince-toc.scss
+++ b/assets/legacy/styles/_prince-toc.scss
@@ -158,6 +158,7 @@
     display: inline-block;
     width: 75%;
     text-indent: 0;
+    color: inherit;
   }
 
   /* TOC CHAPTER NUMBERS */
@@ -610,6 +611,7 @@
     display: none;
     width: 75%;
     text-indent: 0;
+    color: inherit;
   }
 
   /* TOC CHAPTER NUMBERS */
diff --git a/assets/src/scripts/routes/home.js b/assets/src/scripts/routes/home.js
index 5d9e25961..b7da661fe 100644
--- a/assets/src/scripts/routes/home.js
+++ b/assets/src/scripts/routes/home.js
@@ -20,7 +20,7 @@ export default {
 						)
 						.prop( 'hidden', false );
 				} );
-				$target.parents( '.toc__toggle' ).attr( 'aria-expanded', 'true' );
+				$target.parents( '.toc__toggle' ).attr( 'data-expanded', 'true' );
 			} );
 
 			$( document.body ).on( 'click', '.toc__toggle #hide', function ( e ) {
@@ -36,7 +36,7 @@ export default {
 						)
 						.attr( 'hidden', 'true' );
 				} );
-				$target.parents( '.toc__toggle' ).attr( 'aria-expanded', 'false' );
+				$target.parents( '.toc__toggle' ).attr( 'data-expanded', 'false' );
 			} );
 		} );
 	},
diff --git a/assets/src/styles/components/_toc.scss b/assets/src/styles/components/_toc.scss
index 2fe1ae9a0..a8fdb00e3 100644
--- a/assets/src/styles/components/_toc.scss
+++ b/assets/src/styles/components/_toc.scss
@@ -132,19 +132,19 @@ $light: #eee;
   text-align: center;
 }
 
-.toc__toggle[aria-expanded="false"] #hide {
+.toc__toggle[data-expanded="false"] #hide {
   display: none;
 }
 
-.toc__toggle[aria-expanded="false"] #show {
+.toc__toggle[data-expanded="false"] #show {
   display: inline-block;
 }
 
-.toc__toggle[aria-expanded="true"] #hide {
+.toc__toggle[data-expanded="true"] #hide {
   display: inline-block;
 }
 
-.toc__toggle[aria-expanded="true"] #show {
+.toc__toggle[data-expanded="true"] #show {
   display: none;
 }
 
diff --git a/assets/src/styles/layouts/_cover.scss b/assets/src/styles/layouts/_cover.scss
index cf87e3dc0..78f2578e3 100644
--- a/assets/src/styles/layouts/_cover.scss
+++ b/assets/src/styles/layouts/_cover.scss
@@ -467,6 +467,10 @@
   margin-bottom: 0.5rem;
 }
 
+.block-info a, .block-meta a {
+  text-decoration: underline;
+}
+
 #content .license-attribution {
   img {
     height: 2em;
diff --git a/composer.lock b/composer.lock
index f4bf9379b..d05b9dae0 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1747,7 +1747,6 @@
                     "type": "github"
                 }
             ],
-            "abandoned": true,
             "time": "2020-11-30T07:30:19+00:00"
         },
         {
@@ -2733,12 +2732,12 @@
             "version": "0.14.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards.git",
+                "url": "https://github.com/WordPress/WordPress-Coding-Standards.git",
                 "reference": "cf6b310caad735816caef7573295f8a534374706"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/WordPress-Coding-Standards/WordPress-Coding-Standards/zipball/cf6b310caad735816caef7573295f8a534374706",
+                "url": "https://api.github.com/repos/WordPress/WordPress-Coding-Standards/zipball/cf6b310caad735816caef7573295f8a534374706",
                 "reference": "cf6b310caad735816caef7573295f8a534374706",
                 "shasum": ""
             },
diff --git a/dist/mix-manifest.json b/dist/mix-manifest.json
index 25ff2272b..e75cb87c4 100644
--- a/dist/mix-manifest.json
+++ b/dist/mix-manifest.json
@@ -1,11 +1,11 @@
 {
-    "/scripts/book.js": "/scripts/book.js?id=e66e96b2f7d5e73debc8",
+    "/scripts/book.js": "/scripts/book.js?id=e9e6c9579c3aa2a2b5f7",
     "/scripts/pane.js": "/scripts/pane.js?id=7e5b385cb135973c79f7",
     "/scripts/collapse-sections.js": "/scripts/collapse-sections.js?id=b902d882dd21410b4387",
     "/scripts/lightbox.js": "/scripts/lightbox.js?id=cb2b7b2a5fb303c3095d",
-    "/styles/book.css": "/styles/book.css?id=f47ba7caaba9ec75c5f3",
+    "/styles/book.css": "/styles/book.css?id=c427332d12f4f3dab967",
     "/styles/web-house-style.css": "/styles/web-house-style.css?id=f2ec506de7eae2e9ddc5",
-    "/scripts/sharer.js": "/scripts/sharer.js?id=3ac949166b7d8d866f7a",
+    "/scripts/sharer.js": "/scripts/sharer.js?id=726d50806d381e7cf7d0",
     "/scripts/lity.js": "/scripts/lity.js?id=b91ed0405760d2e124c1",
     "/scripts/details-element-polyfill.js": "/scripts/details-element-polyfill.js?id=60ad7c2161011e153d53",
     "/styles/lity.css": "/styles/lity.css?id=2b05d25ddc82cd96736b",
diff --git a/dist/scripts/book.js b/dist/scripts/book.js
index 76c16d923..01f2a655d 100644
--- a/dist/scripts/book.js
+++ b/dist/scripts/book.js
@@ -1 +1 @@
-(()=>{"use strict";var t,e={875:()=>{const t={init:function(){if(document.body.classList.remove("no-js"),document.body.classList.add("js"),function(){for(var t=document.getElementsByTagName("section"),e=0,n=t.length;e<n;e++)t[e].setAttribute("tabindex",-1),t[e].className+=" focusable"}(),window.location.hash&&"#"!==window.location.hash){var t=document.querySelector(window.location.hash);if(t){var e=t.closest("div[hidden]");if(e)e.hidden=!1,e.previousElementSibling.querySelector("button").setAttribute("aria-expanded",!0),t.scrollIntoView()}}var n,o,a;document.querySelector(".js-header-nav-toggle").addEventListener("click",(function(t){t.preventDefault(),document.querySelector(".header__nav").classList.toggle("header__nav--active")})),n=document.querySelectorAll(".dropdown > p, .dropdown > div.reading-header__toc__title"),Array.prototype.forEach.call(n,(function(t){t.innerHTML='\n\t\t\t\t<button type="button" aria-expanded="false">\n\t\t\t\t\t'.concat(t.innerHTML,'\n\t\t\t\t\t<svg role="img" class="arrow" width="13" height="8" viewBox="0 0 13 8" xmlns="http://www.w3.org/2000/svg"><path d="M6.255 8L0 0h12.51z" fill="currentColor" fill-rule="evenodd"></path></svg>\n\t\t\t\t</button>\n\t\t\t\t');var e=t.nextElementSibling;e.hidden=!0;var n=t.querySelector("button"),o=t.querySelector("button > .arrow"),a=e.querySelectorAll("a");Array.prototype.forEach.call(a,(function(t){t.onblur=function(o){t===a[a.length-1]&&"LI"!==o.relatedTarget.parentNode.nodeName&&(n.setAttribute("aria-expanded",!1),e.hidden=!0)}}));var i=jQuery("button[aria-expanded] > svg"),r=jQuery("button[aria-expanded]");jQuery(r,i).on("click",(function(t){var a="true"===n.getAttribute("aria-expanded")||!1;n===t.target||o===t.target.closest("svg")?(n.setAttribute("aria-expanded",!a),e.hidden=a):(n.setAttribute("aria-expanded",!1),e.hidden=!0)})),document.onclick=function(t){var o="book-header__cover__downloads",a=jQuery(t.target),i=jQuery(".".concat(o)).find("button");0===i.length||a.closest("div").hasClass(o)||a.hasClass("dropdown-item")||"true"===i.attr("aria-expanded")&&(n.setAttribute("aria-expanded",!1),e.hidden=!0)},document.onkeydown=function(t){27!==t.which||e.hidden||(n.setAttribute("aria-expanded",!1),e.hidden=!0)}})),o=document.querySelectorAll(".toc__part--full > .toc__title__container, .toc__chapter--full > .toc__title__container, .toc__front-matter--full > .toc__title__container, .toc__back-matter--full > .toc__title__container"),a=document.body.classList.contains("home"),Array.prototype.forEach.call(o,(function(t){var e=!!(a&&t.parentNode.classList.contains("toc__part")||!a&&t.parentNode.classList.contains("toc__parent")),n="".concat(pressbooksBook.toggle_contents," '").concat(t.innerText,"'");t.innerHTML="\n\t\t\t\t<span>".concat(t.innerHTML,'</span>\n\t\t\t\t<button type="button" aria-expanded="').concat(e,'" aria-label="').concat(n,'">\n\t\t\t\t\t<svg viewBox="0 0 9 9" aria-hidden="true" focusable="false">\n\t\t\t\t\t\t<rect class="vert" height="7" width="1" y="1" x="4" />\n\t\t\t\t\t\t<rect height="1" width="7" y="4" x="1" />\n\t\t\t\t\t</svg>\n\t\t\t\t</button>\n\t\t\t\t');var o=t.nextElementSibling;!1===e||!a&&!t.parentNode.classList.contains("toc__parent")?o.hidden=!0:a&&t.parentNode.classList.contains("toc__parent")&&(o.hidden=!1);var i=t.querySelector("button");i.onclick=function(){var t="true"===i.getAttribute("aria-expanded")||!1;i.setAttribute("aria-expanded",!t),o.hidden=t}})),jQuery((function(t){var e=t(".h5p-row-item"),n=t(".h5p-activity-container");n.hide(),t("#h5p-show-hide").text(t("#h5p-show-hide").attr("show-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("show-activity-text")),e.on("click",(function(){t(this).text()===t(this).attr("show-activity-text")?(n.hide(),t(this).closest("tr").next(this).show("slow"),t(this).text(t(this).attr("hide-activity-text")),window.dispatchEvent(new Event("resize"))):(t(this).closest("tr").next(this).hide(),t(this).text(t(this).attr("show-activity-text")))})),t("#h5p-show-hide").on("click",(function(){t(this).text()===t(this).attr("show-all-text")?(n.show(),t(this).text(t(this).attr("hide-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("hide-activity-text")),window.dispatchEvent(new Event("resize"))):(n.hide(),t(this).text(t(this).attr("show-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("show-activity-text")))}))}))},finalize:function(){}},e={init:function(){jQuery((function(t){t(document.body).on("click",".js-toggle-block",(function(e){var n=t(this);n.parents(".js-block").toggleClass("block-toggle--visible"),n.toggleClass("--visible")})),t(document.body).on("click",".toc__toggle #show",(function(e){var n=t(this);t('.toc [class*="--full"]').each((function(e){t(this).find("button").attr("aria-expanded","true"),t(this).find("ol").prop("hidden",!1)})),n.parents(".toc__toggle").attr("aria-expanded","true")})),t(document.body).on("click",".toc__toggle #hide",(function(e){var n=t(this);t('.toc [class*="--full"]').each((function(e){t(this).find("button").attr("aria-expanded","false"),t(this).find("ol").attr("hidden","true")})),n.parents(".toc__toggle").attr("aria-expanded","false")}))}))},finalize:function(){}},n={init:function(){jQuery((function(t){var e=t(".block-reading-meta__compare__toggle");e.on("click",(function(n){var o=t(".block-reading-meta__compare__activity"),a=t(".alert"),i=t(".block-reading-meta__compare__comparison"),r=t(".block-reading-meta__compare__stats"),c=t(".block-reading-meta__compare__current");if(a.addClass("visually-hidden"),"false"===t(n.currentTarget).attr("aria-expanded"))if(e.attr("aria-expanded",!0),o.prop("hidden",!1),i.hasClass("populated"))i.prop("hidden",!1),o.attr("hidden",!0);else{a.text(pressbooksBook.comparison_loading);var s=c.html(),d=c.attr("data-source-endpoint");fetch(d).then((function(e){if(200!==e.status)return a.addClass("alert--error").removeClass("visually-hidden").text(pressbooksBook.chapter_not_loaded),void o.attr("hidden",!0);e.json().then((function(e){var n=t("<div>"+e.content.raw+"</div>").html();t.post(pressbooksBook.ajaxurl,{action:"text_diff",security:pressbooksBook.text_diff_nonce,left:n,right:s},(function(e){if(!0===e.success){var n=JSON.parse(e.data);i.append(n),i.children("table");var c=t(".diff del").length,s=t(".diff ins").length;r.children("ins").children(".num").text(s),r.children("del ").children(".num").text(c),o.attr("hidden",!0),a.text(pressbooksBook.comparison_loaded),i.prop("hidden",!1)}}))}))})).catch((function(t){a.addClass("alert--error").removeClass("visually-hidden").text(pressbooksBook.chapter_not_loaded),o.attr("hidden",!0)}))}else e.attr("aria-expanded",!1),i.attr("hidden",!0),t(".diff").remove()})),t(document).ready((function(){var e;t(window).on("scroll",(function(){t(window).scrollTop()>250&&t(".nav-reading__up").animate({opacity:1},0),t(window).scrollTop()<250&&t(".nav-reading__up").animate({opacity:0},0)})),t(".nav-reading__up").on("click",(function(e){return e.preventDefault(),t(".nav-reading__up").blur().animate({opacity:0},0),t("html, body").animate({scrollTop:0},0),!1})),t(document).on("keydown",(function(e){if(!t("body").hasClass("no-navigation")){var n=!1;37===e.which?n=t(".nav-previous a, .js-nav-previous a").attr("href"):39===e.which&&(n=t(".nav-next a, .js-nav-next a").attr("href")),n&&!t("textarea, input").is(":focus")&&(window.location=n)}})),(e=t("iframe[src*='//player.vimeo.com'], iframe[src*='//www.youtube.com']")).each((function(){t(this).data("aspectRatio",this.height/this.width).removeAttr("height").removeAttr("width")})),t(window).on("resize",(function(){e.each((function(){var e=t(this),n=e.parent().parent().width();e.width(n).height(n*e.data("aspectRatio"))}))})).trigger("resize")}))}))},finalize:function(){}},o=function(t){return"".concat(t.charAt(0).toLowerCase()).concat(t.replace(/[\W_]/g,"|").split("|").map((function(t){return"".concat(t.charAt(0).toUpperCase()).concat(t.slice(1))})).join("").slice(1))};function a(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}var i=new(function(){function t(e){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.routes=e}var e,n,i;return e=t,(n=[{key:"fire",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"init",n=arguments.length>2?arguments[2]:void 0,o=""!==t&&this.routes[t]&&"function"==typeof this.routes[t][e];o&&this.routes[t][e](n)}},{key:"loadEvents",value:function(){var t=this;this.fire("common"),document.body.className.toLowerCase().replace(/-/g,"_").split(/\s+/).map(o).forEach((function(e){t.fire(e),t.fire(e,"finalize")})),this.fire("common","finalize")}}])&&a(e.prototype,n),i&&a(e,i),t}())({common:t,home:e,single:n});jQuery(document).ready((function(){return i.loadEvents()}))},340:()=>{},811:()=>{}},n={};function o(t){var a=n[t];if(void 0!==a)return a.exports;var i=n[t]={exports:{}};return e[t](i,i.exports,o),i.exports}o.m=e,t=[],o.O=(e,n,a,i)=>{if(!n){var r=1/0;for(d=0;d<t.length;d++){for(var[n,a,i]=t[d],c=!0,s=0;s<n.length;s++)(!1&i||r>=i)&&Object.keys(o.O).every((t=>o.O[t](n[s])))?n.splice(s--,1):(c=!1,i<r&&(r=i));c&&(t.splice(d--,1),e=a())}return e}i=i||0;for(var d=t.length;d>0&&t[d-1][2]>i;d--)t[d]=t[d-1];t[d]=[n,a,i]},o.o=(t,e)=>Object.prototype.hasOwnProperty.call(t,e),(()=>{var t={370:0,97:0,765:0};o.O.j=e=>0===t[e];var e=(e,n)=>{var a,i,[r,c,s]=n,d=0;for(a in c)o.o(c,a)&&(o.m[a]=c[a]);if(s)var l=s(o);for(e&&e(n);d<r.length;d++)i=r[d],o.o(t,i)&&t[i]&&t[i][0](),t[r[d]]=0;return o.O(l)},n=self.webpackChunk_pressbooks_pressbooks_book=self.webpackChunk_pressbooks_pressbooks_book||[];n.forEach(e.bind(null,0)),n.push=e.bind(null,n.push.bind(n))})(),o.O(void 0,[97,765],(()=>o(875))),o.O(void 0,[97,765],(()=>o(340)));var a=o.O(void 0,[97,765],(()=>o(811)));a=o.O(a)})();
\ No newline at end of file
+(()=>{"use strict";var t,e={875:()=>{const t={init:function(){if(document.body.classList.remove("no-js"),document.body.classList.add("js"),function(){for(var t=document.getElementsByTagName("section"),e=0,n=t.length;e<n;e++)t[e].setAttribute("tabindex",-1),t[e].className+=" focusable"}(),window.location.hash&&"#"!==window.location.hash){var t=document.querySelector(window.location.hash);if(t){var e=t.closest("div[hidden]");if(e)e.hidden=!1,e.previousElementSibling.querySelector("button").setAttribute("aria-expanded",!0),t.scrollIntoView()}}var n,o,a;document.querySelector(".js-header-nav-toggle").addEventListener("click",(function(t){t.preventDefault(),document.querySelector(".header__nav").classList.toggle("header__nav--active")})),n=document.querySelectorAll(".dropdown > p, .dropdown > div.reading-header__toc__title"),Array.prototype.forEach.call(n,(function(t){t.innerHTML='\n\t\t\t\t<button type="button" aria-expanded="false">\n\t\t\t\t\t'.concat(t.innerHTML,'\n\t\t\t\t\t<svg role="img" class="arrow" width="13" height="8" viewBox="0 0 13 8" xmlns="http://www.w3.org/2000/svg"><path d="M6.255 8L0 0h12.51z" fill="currentColor" fill-rule="evenodd"></path></svg>\n\t\t\t\t</button>\n\t\t\t\t');var e=t.nextElementSibling;e.hidden=!0;var n=t.querySelector("button"),o=t.querySelector("button > .arrow"),a=e.querySelectorAll("a");Array.prototype.forEach.call(a,(function(t){t.onblur=function(o){t===a[a.length-1]&&"LI"!==o.relatedTarget.parentNode.nodeName&&(n.setAttribute("aria-expanded",!1),e.hidden=!0)}}));var i=jQuery("button[aria-expanded] > svg"),r=jQuery("button[aria-expanded]");jQuery(r,i).on("click",(function(t){var a="true"===n.getAttribute("aria-expanded")||!1;n===t.target||o===t.target.closest("svg")?(n.setAttribute("aria-expanded",!a),e.hidden=a):(n.setAttribute("aria-expanded",!1),e.hidden=!0)})),document.onclick=function(t){var o="book-header__cover__downloads",a=jQuery(t.target),i=jQuery(".".concat(o)).find("button");0===i.length||a.closest("div").hasClass(o)||a.hasClass("dropdown-item")||"true"===i.attr("aria-expanded")&&(n.setAttribute("aria-expanded",!1),e.hidden=!0)},document.onkeydown=function(t){27!==t.which||e.hidden||(n.setAttribute("aria-expanded",!1),e.hidden=!0)}})),o=document.querySelectorAll(".toc__part--full > .toc__title__container, .toc__chapter--full > .toc__title__container, .toc__front-matter--full > .toc__title__container, .toc__back-matter--full > .toc__title__container"),a=document.body.classList.contains("home"),Array.prototype.forEach.call(o,(function(t){var e=!!(a&&t.parentNode.classList.contains("toc__part")||!a&&t.parentNode.classList.contains("toc__parent")),n="".concat(pressbooksBook.toggle_contents," '").concat(t.innerText,"'");t.innerHTML="\n\t\t\t\t<span>".concat(t.innerHTML,'</span>\n\t\t\t\t<button type="button" aria-expanded="').concat(e,'" aria-label="').concat(n,'">\n\t\t\t\t\t<svg viewBox="0 0 9 9" aria-hidden="true" focusable="false">\n\t\t\t\t\t\t<rect class="vert" height="7" width="1" y="1" x="4" />\n\t\t\t\t\t\t<rect height="1" width="7" y="4" x="1" />\n\t\t\t\t\t</svg>\n\t\t\t\t</button>\n\t\t\t\t');var o=t.nextElementSibling;!1===e||!a&&!t.parentNode.classList.contains("toc__parent")?o.hidden=!0:a&&t.parentNode.classList.contains("toc__parent")&&(o.hidden=!1);var i=t.querySelector("button");i.onclick=function(){var t="true"===i.getAttribute("aria-expanded")||!1;i.setAttribute("aria-expanded",!t),o.hidden=t}})),jQuery((function(t){var e=t(".h5p-row-item"),n=t(".h5p-activity-container");n.hide(),t("#h5p-show-hide").text(t("#h5p-show-hide").attr("show-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("show-activity-text")),e.on("click",(function(){t(this).text()===t(this).attr("show-activity-text")?(n.hide(),t(this).closest("tr").next(this).show("slow"),t(this).text(t(this).attr("hide-activity-text")),window.dispatchEvent(new Event("resize"))):(t(this).closest("tr").next(this).hide(),t(this).text(t(this).attr("show-activity-text")))})),t("#h5p-show-hide").on("click",(function(){t(this).text()===t(this).attr("show-all-text")?(n.show(),t(this).text(t(this).attr("hide-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("hide-activity-text")),window.dispatchEvent(new Event("resize"))):(n.hide(),t(this).text(t(this).attr("show-all-text")),t(".h5p-row-item").text(t(".h5p-row-item").attr("show-activity-text")))}))}))},finalize:function(){}},e={init:function(){jQuery((function(t){t(document.body).on("click",".js-toggle-block",(function(e){var n=t(this);n.parents(".js-block").toggleClass("block-toggle--visible"),n.toggleClass("--visible")})),t(document.body).on("click",".toc__toggle #show",(function(e){var n=t(this);t('.toc [class*="--full"]').each((function(e){t(this).find("button").attr("aria-expanded","true"),t(this).find("ol").prop("hidden",!1)})),n.parents(".toc__toggle").attr("data-expanded","true")})),t(document.body).on("click",".toc__toggle #hide",(function(e){var n=t(this);t('.toc [class*="--full"]').each((function(e){t(this).find("button").attr("aria-expanded","false"),t(this).find("ol").attr("hidden","true")})),n.parents(".toc__toggle").attr("data-expanded","false")}))}))},finalize:function(){}},n={init:function(){jQuery((function(t){var e=t(".block-reading-meta__compare__toggle");e.on("click",(function(n){var o=t(".block-reading-meta__compare__activity"),a=t(".alert"),i=t(".block-reading-meta__compare__comparison"),r=t(".block-reading-meta__compare__stats"),c=t(".block-reading-meta__compare__current");if(a.addClass("visually-hidden"),"false"===t(n.currentTarget).attr("aria-expanded"))if(e.attr("aria-expanded",!0),o.prop("hidden",!1),i.hasClass("populated"))i.prop("hidden",!1),o.attr("hidden",!0);else{a.text(pressbooksBook.comparison_loading);var s=c.html(),d=c.attr("data-source-endpoint");fetch(d).then((function(e){if(200!==e.status)return a.addClass("alert--error").removeClass("visually-hidden").text(pressbooksBook.chapter_not_loaded),void o.attr("hidden",!0);e.json().then((function(e){var n=t("<div>"+e.content.raw+"</div>").html();t.post(pressbooksBook.ajaxurl,{action:"text_diff",security:pressbooksBook.text_diff_nonce,left:n,right:s},(function(e){if(!0===e.success){var n=JSON.parse(e.data);i.append(n),i.children("table");var c=t(".diff del").length,s=t(".diff ins").length;r.children("ins").children(".num").text(s),r.children("del ").children(".num").text(c),o.attr("hidden",!0),a.text(pressbooksBook.comparison_loaded),i.prop("hidden",!1)}}))}))})).catch((function(t){a.addClass("alert--error").removeClass("visually-hidden").text(pressbooksBook.chapter_not_loaded),o.attr("hidden",!0)}))}else e.attr("aria-expanded",!1),i.attr("hidden",!0),t(".diff").remove()})),t(document).ready((function(){var e;t(window).on("scroll",(function(){t(window).scrollTop()>250&&t(".nav-reading__up").animate({opacity:1},0),t(window).scrollTop()<250&&t(".nav-reading__up").animate({opacity:0},0)})),t(".nav-reading__up").on("click",(function(e){return e.preventDefault(),t(".nav-reading__up").blur().animate({opacity:0},0),t("html, body").animate({scrollTop:0},0),!1})),t(document).on("keydown",(function(e){if(!t("body").hasClass("no-navigation")){var n=!1;37===e.which?n=t(".nav-previous a, .js-nav-previous a").attr("href"):39===e.which&&(n=t(".nav-next a, .js-nav-next a").attr("href")),n&&!t("textarea, input").is(":focus")&&(window.location=n)}})),(e=t("iframe[src*='//player.vimeo.com'], iframe[src*='//www.youtube.com']")).each((function(){t(this).data("aspectRatio",this.height/this.width).removeAttr("height").removeAttr("width")})),t(window).on("resize",(function(){e.each((function(){var e=t(this),n=e.parent().parent().width();e.width(n).height(n*e.data("aspectRatio"))}))})).trigger("resize")}))}))},finalize:function(){}},o=function(t){return"".concat(t.charAt(0).toLowerCase()).concat(t.replace(/[\W_]/g,"|").split("|").map((function(t){return"".concat(t.charAt(0).toUpperCase()).concat(t.slice(1))})).join("").slice(1))};function a(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}var i=new(function(){function t(e){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.routes=e}var e,n,i;return e=t,(n=[{key:"fire",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"init",n=arguments.length>2?arguments[2]:void 0,o=""!==t&&this.routes[t]&&"function"==typeof this.routes[t][e];o&&this.routes[t][e](n)}},{key:"loadEvents",value:function(){var t=this;this.fire("common"),document.body.className.toLowerCase().replace(/-/g,"_").split(/\s+/).map(o).forEach((function(e){t.fire(e),t.fire(e,"finalize")})),this.fire("common","finalize")}}])&&a(e.prototype,n),i&&a(e,i),t}())({common:t,home:e,single:n});jQuery(document).ready((function(){return i.loadEvents()}))},340:()=>{},811:()=>{}},n={};function o(t){var a=n[t];if(void 0!==a)return a.exports;var i=n[t]={exports:{}};return e[t](i,i.exports,o),i.exports}o.m=e,t=[],o.O=(e,n,a,i)=>{if(!n){var r=1/0;for(d=0;d<t.length;d++){for(var[n,a,i]=t[d],c=!0,s=0;s<n.length;s++)(!1&i||r>=i)&&Object.keys(o.O).every((t=>o.O[t](n[s])))?n.splice(s--,1):(c=!1,i<r&&(r=i));c&&(t.splice(d--,1),e=a())}return e}i=i||0;for(var d=t.length;d>0&&t[d-1][2]>i;d--)t[d]=t[d-1];t[d]=[n,a,i]},o.o=(t,e)=>Object.prototype.hasOwnProperty.call(t,e),(()=>{var t={370:0,97:0,765:0};o.O.j=e=>0===t[e];var e=(e,n)=>{var a,i,[r,c,s]=n,d=0;for(a in c)o.o(c,a)&&(o.m[a]=c[a]);if(s)var l=s(o);for(e&&e(n);d<r.length;d++)i=r[d],o.o(t,i)&&t[i]&&t[i][0](),t[r[d]]=0;return o.O(l)},n=self.webpackChunk_pressbooks_pressbooks_book=self.webpackChunk_pressbooks_pressbooks_book||[];n.forEach(e.bind(null,0)),n.push=e.bind(null,n.push.bind(n))})(),o.O(void 0,[97,765],(()=>o(875))),o.O(void 0,[97,765],(()=>o(340)));var a=o.O(void 0,[97,765],(()=>o(811)));a=o.O(a)})();
\ No newline at end of file
diff --git a/dist/scripts/sharer.js b/dist/scripts/sharer.js
index 8e994f116..b339b106c 100644
--- a/dist/scripts/sharer.js
+++ b/dist/scripts/sharer.js
@@ -1 +1 @@
-!function(t,e){"use strict";var a=function(t){this.elem=t};a.init=function(){var t,r=e.querySelectorAll("[data-sharer]"),s=r.length;for(t=0;t<s;t++)r[t].addEventListener("click",a.add)},a.add=function(t){var e=t.currentTarget||t.srcElement;new a(e).share()},a.prototype={constructor:a,getValue:function(t){var e=this.elem.getAttribute("data-"+t);return e&&"hashtag"===t&&(e.startsWith("#")||(e="#"+e)),e},share:function(){var t=this.getValue("sharer").toLowerCase(),e={facebook:{shareUrl:"https://www.facebook.com/sharer/sharer.php",params:{u:this.getValue("url"),hashtag:this.getValue("hashtag")}},linkedin:{shareUrl:"https://www.linkedin.com/shareArticle",params:{url:this.getValue("url"),mini:!0}},twitter:{shareUrl:"https://twitter.com/intent/tweet/",params:{text:this.getValue("title"),url:this.getValue("url"),hashtags:this.getValue("hashtags"),via:this.getValue("via")}},email:{shareUrl:"mailto:"+this.getValue("to")||"",params:{subject:this.getValue("subject"),body:this.getValue("title")+"\n"+this.getValue("url")},isLink:!0},whatsapp:{shareUrl:null!==this.getValue("web")?"https://api.whatsapp.com/send":"https://wa.me/",params:{text:this.getValue("title")+" "+this.getValue("url")},isLink:!0},telegram:{shareUrl:null!==this.getValue("web")?"https://telegram.me/share":"tg://msg_url",params:{text:this.getValue("title"),url:this.getValue("url")},isLink:!0},viber:{shareUrl:"viber://forward",params:{text:this.getValue("title")+" "+this.getValue("url")},isLink:!0},line:{shareUrl:"http://line.me/R/msg/text/?"+encodeURIComponent(this.getValue("title")+" "+this.getValue("url")),isLink:!0},pinterest:{shareUrl:"https://www.pinterest.com/pin/create/button/",params:{url:this.getValue("url"),media:this.getValue("image"),description:this.getValue("description")}},tumblr:{shareUrl:"http://tumblr.com/widgets/share/tool",params:{canonicalUrl:this.getValue("url"),content:this.getValue("url"),posttype:"link",title:this.getValue("title"),caption:this.getValue("caption"),tags:this.getValue("tags")}},hackernews:{shareUrl:"https://news.ycombinator.com/submitlink",params:{u:this.getValue("url"),t:this.getValue("title")}},reddit:{shareUrl:"https://www.reddit.com/submit",params:{url:this.getValue("url")}},vk:{shareUrl:"http://vk.com/share.php",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("caption"),image:this.getValue("image")}},xing:{shareUrl:"https://www.xing.com/social/share/spi",params:{url:this.getValue("url")}},buffer:{shareUrl:"https://buffer.com/add",params:{url:this.getValue("url"),title:this.getValue("title"),via:this.getValue("via"),picture:this.getValue("picture")}},instapaper:{shareUrl:"http://www.instapaper.com/edit",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},pocket:{shareUrl:"https://getpocket.com/save",params:{url:this.getValue("url")}},stumbleupon:{shareUrl:"http://www.stumbleupon.com/submit",params:{url:this.getValue("url"),title:this.getValue("title")}},mashable:{shareUrl:"https://mashable.com/submit",params:{url:this.getValue("url"),title:this.getValue("title")}},mix:{shareUrl:"https://mix.com/add",params:{url:this.getValue("url")}},flipboard:{shareUrl:"https://share.flipboard.com/bookmarklet/popout",params:{v:2,title:this.getValue("title"),url:this.getValue("url"),t:Date.now()}},weibo:{shareUrl:"http://service.weibo.com/share/share.php",params:{url:this.getValue("url"),title:this.getValue("title"),pic:this.getValue("image"),appkey:this.getValue("appkey"),ralateUid:this.getValue("ralateuid"),language:"zh_cn"}},renren:{shareUrl:"http://share.renren.com/share/buttonshare",params:{link:this.getValue("url")}},myspace:{shareUrl:"https://myspace.com/post",params:{u:this.getValue("url"),t:this.getValue("title"),c:this.getValue("description")}},blogger:{shareUrl:"https://www.blogger.com/blog-this.g",params:{u:this.getValue("url"),n:this.getValue("title"),t:this.getValue("description")}},baidu:{shareUrl:"http://cang.baidu.com/do/add",params:{it:this.getValue("title"),iu:this.getValue("url")}},douban:{shareUrl:"https://www.douban.com/share/service",params:{name:this.getValue("name"),href:this.getValue("url"),image:this.getValue("image"),comment:this.getValue("description")}},okru:{shareUrl:"https://connect.ok.ru/dk",params:{"st.cmd":"WidgetSharePreview","st.shareUrl":this.getValue("url"),title:this.getValue("title")}},mailru:{shareUrl:"http://connect.mail.ru/share",params:{share_url:this.getValue("url"),linkname:this.getValue("title"),linknote:this.getValue("description"),type:"page"}},evernote:{shareUrl:"https://www.evernote.com/clip.action",params:{url:this.getValue("url"),title:this.getValue("title")}},skype:{shareUrl:"https://web.skype.com/share",params:{url:this.getValue("url"),title:this.getValue("title")}},quora:{shareUrl:"https://www.quora.com/share",params:{url:this.getValue("url"),title:this.getValue("title")}},delicious:{shareUrl:"https://del.icio.us/post",params:{url:this.getValue("url"),title:this.getValue("title")}},sms:{shareUrl:"sms://",params:{body:this.getValue("body")}},trello:{shareUrl:"https://trello.com/add-card",params:{url:this.getValue("url"),name:this.getValue("title"),desc:this.getValue("description"),mode:"popup"}},messenger:{shareUrl:"fb-messenger://share",params:{link:this.getValue("url")}},odnoklassniki:{shareUrl:"https://connect.ok.ru/dk",params:{st:{cmd:"WidgetSharePreview",deprecated:1,shareUrl:this.getValue("url")}}},meneame:{shareUrl:"https://www.meneame.net/submit",params:{url:this.getValue("url")}},diaspora:{shareUrl:"https://share.diasporafoundation.org",params:{title:this.getValue("title"),url:this.getValue("url")}},googlebookmarks:{shareUrl:"https://www.google.com/bookmarks/mark",params:{op:"edit",bkmk:this.getValue("url"),title:this.getValue("title")}},qzone:{shareUrl:"https://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey",params:{url:this.getValue("url")}},refind:{shareUrl:"https://refind.com",params:{url:this.getValue("url")}},surfingbird:{shareUrl:"https://surfingbird.ru/share",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},yahoomail:{shareUrl:"http://compose.mail.yahoo.com",params:{to:this.getValue("to"),subject:this.getValue("subject"),body:this.getValue("body")}},wordpress:{shareUrl:"https://wordpress.com/wp-admin/press-this.php",params:{u:this.getValue("url"),t:this.getValue("title"),s:this.getValue("title")}},amazon:{shareUrl:"https://www.amazon.com/gp/wishlist/static-add",params:{u:this.getValue("url"),t:this.getValue("title")}},pinboard:{shareUrl:"https://pinboard.in/add",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},threema:{shareUrl:"threema://compose",params:{text:this.getValue("text"),id:this.getValue("id")}},kakaostory:{shareUrl:"https://story.kakao.com/share",params:{url:this.getValue("url")}},yummly:{shareUrl:"http://www.yummly.com/urb/verify",params:{url:this.getValue("url"),title:this.getValue("title"),yumtype:"button"}}}[t];return e&&(e.width=this.getValue("width"),e.height=this.getValue("height")),void 0!==e&&this.urlSharer(e)},urlSharer:function(e){var a,r=e.params||{},s=Object.keys(r),l=s.length>0?"?":"";for(a=0;a<s.length;a++)"?"!==l&&(l+="&"),r[s[a]]&&(l+=s[a]+"="+encodeURIComponent(r[s[a]]));if(e.shareUrl+=l,e.isLink)t.location.href=e.shareUrl;else{var i=e.width||600,h=e.height||480,u=t.innerWidth/2-i/2+t.screenX,o="scrollbars=no, width="+i+", height="+h+", top="+(t.innerHeight/2-h/2+t.screenY)+", left="+u,p=t.open(e.shareUrl,"",o);t.focus&&p.focus()}}},"complete"===e.readyState||"loading"!==e.readyState?a.init():e.addEventListener("DOMContentLoaded",a.init),t.Sharer=a}(window,document);
+!function(t,e){"use strict";var a=function(t){this.elem=t};a.init=function(){var t,s=e.querySelectorAll("[data-sharer]"),r=s.length;for(t=0;t<r;t++)s[t].addEventListener("click",a.add)},a.add=function(t){var e=t.currentTarget||t.srcElement;new a(e).share()},a.prototype={constructor:a,getValue:function(t){var e=this.elem.getAttribute("data-"+t);return e&&"hashtag"===t&&(e.startsWith("#")||(e="#"+e)),e},share:function(){var t=this.getValue("sharer").toLowerCase(),e={facebook:{shareUrl:"https://www.facebook.com/sharer/sharer.php",params:{u:this.getValue("url"),hashtag:this.getValue("hashtag"),quote:this.getValue("quote")}},linkedin:{shareUrl:"https://www.linkedin.com/shareArticle",params:{url:this.getValue("url"),mini:!0}},twitter:{shareUrl:"https://twitter.com/intent/tweet/",params:{text:this.getValue("title"),url:this.getValue("url"),hashtags:this.getValue("hashtags"),via:this.getValue("via")}},email:{shareUrl:"mailto:"+this.getValue("to")||"",params:{subject:this.getValue("subject"),body:this.getValue("title")+"\n"+this.getValue("url")},isLink:!0},whatsapp:{shareUrl:null!==this.getValue("web")?"https://api.whatsapp.com/send":"https://wa.me/",params:{text:this.getValue("title")+" "+this.getValue("url")},isLink:!0},telegram:{shareUrl:null!==this.getValue("web")?"https://telegram.me/share":"tg://msg_url",params:{text:this.getValue("title"),url:this.getValue("url")},isLink:!0},viber:{shareUrl:"viber://forward",params:{text:this.getValue("title")+" "+this.getValue("url")},isLink:!0},line:{shareUrl:"http://line.me/R/msg/text/?"+encodeURIComponent(this.getValue("title")+" "+this.getValue("url")),isLink:!0},pinterest:{shareUrl:"https://www.pinterest.com/pin/create/button/",params:{url:this.getValue("url"),media:this.getValue("image"),description:this.getValue("description")}},tumblr:{shareUrl:"http://tumblr.com/widgets/share/tool",params:{canonicalUrl:this.getValue("url"),content:this.getValue("url"),posttype:"link",title:this.getValue("title"),caption:this.getValue("caption"),tags:this.getValue("tags")}},hackernews:{shareUrl:"https://news.ycombinator.com/submitlink",params:{u:this.getValue("url"),t:this.getValue("title")}},reddit:{shareUrl:"https://www.reddit.com/submit",params:{url:this.getValue("url")}},vk:{shareUrl:"http://vk.com/share.php",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("caption"),image:this.getValue("image")}},xing:{shareUrl:"https://www.xing.com/social/share/spi",params:{url:this.getValue("url")}},buffer:{shareUrl:"https://buffer.com/add",params:{url:this.getValue("url"),title:this.getValue("title"),via:this.getValue("via"),picture:this.getValue("picture")}},instapaper:{shareUrl:"http://www.instapaper.com/edit",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},pocket:{shareUrl:"https://getpocket.com/save",params:{url:this.getValue("url")}},stumbleupon:{shareUrl:"http://www.stumbleupon.com/submit",params:{url:this.getValue("url"),title:this.getValue("title")}},mashable:{shareUrl:"https://mashable.com/submit",params:{url:this.getValue("url"),title:this.getValue("title")}},mix:{shareUrl:"https://mix.com/add",params:{url:this.getValue("url")}},flipboard:{shareUrl:"https://share.flipboard.com/bookmarklet/popout",params:{v:2,title:this.getValue("title"),url:this.getValue("url"),t:Date.now()}},weibo:{shareUrl:"http://service.weibo.com/share/share.php",params:{url:this.getValue("url"),title:this.getValue("title"),pic:this.getValue("image"),appkey:this.getValue("appkey"),ralateUid:this.getValue("ralateuid"),language:"zh_cn"}},renren:{shareUrl:"http://share.renren.com/share/buttonshare",params:{link:this.getValue("url")}},myspace:{shareUrl:"https://myspace.com/post",params:{u:this.getValue("url"),t:this.getValue("title"),c:this.getValue("description")}},blogger:{shareUrl:"https://www.blogger.com/blog-this.g",params:{u:this.getValue("url"),n:this.getValue("title"),t:this.getValue("description")}},baidu:{shareUrl:"http://cang.baidu.com/do/add",params:{it:this.getValue("title"),iu:this.getValue("url")}},douban:{shareUrl:"https://www.douban.com/share/service",params:{name:this.getValue("name"),href:this.getValue("url"),image:this.getValue("image"),comment:this.getValue("description")}},okru:{shareUrl:"https://connect.ok.ru/dk",params:{"st.cmd":"WidgetSharePreview","st.shareUrl":this.getValue("url"),title:this.getValue("title")}},mailru:{shareUrl:"http://connect.mail.ru/share",params:{share_url:this.getValue("url"),linkname:this.getValue("title"),linknote:this.getValue("description"),type:"page"}},evernote:{shareUrl:"https://www.evernote.com/clip.action",params:{url:this.getValue("url"),title:this.getValue("title")}},skype:{shareUrl:"https://web.skype.com/share",params:{url:this.getValue("url"),title:this.getValue("title")}},delicious:{shareUrl:"https://del.icio.us/post",params:{url:this.getValue("url"),title:this.getValue("title")}},sms:{shareUrl:"sms://",params:{body:this.getValue("body")}},trello:{shareUrl:"https://trello.com/add-card",params:{url:this.getValue("url"),name:this.getValue("title"),desc:this.getValue("description"),mode:"popup"}},messenger:{shareUrl:"fb-messenger://share",params:{link:this.getValue("url")}},odnoklassniki:{shareUrl:"https://connect.ok.ru/dk",params:{st:{cmd:"WidgetSharePreview",deprecated:1,shareUrl:this.getValue("url")}}},meneame:{shareUrl:"https://www.meneame.net/submit",params:{url:this.getValue("url")}},diaspora:{shareUrl:"https://share.diasporafoundation.org",params:{title:this.getValue("title"),url:this.getValue("url")}},googlebookmarks:{shareUrl:"https://www.google.com/bookmarks/mark",params:{op:"edit",bkmk:this.getValue("url"),title:this.getValue("title")}},qzone:{shareUrl:"https://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey",params:{url:this.getValue("url")}},refind:{shareUrl:"https://refind.com",params:{url:this.getValue("url")}},surfingbird:{shareUrl:"https://surfingbird.ru/share",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},yahoomail:{shareUrl:"http://compose.mail.yahoo.com",params:{to:this.getValue("to"),subject:this.getValue("subject"),body:this.getValue("body")}},wordpress:{shareUrl:"https://wordpress.com/wp-admin/press-this.php",params:{u:this.getValue("url"),t:this.getValue("title"),s:this.getValue("title")}},amazon:{shareUrl:"https://www.amazon.com/gp/wishlist/static-add",params:{u:this.getValue("url"),t:this.getValue("title")}},pinboard:{shareUrl:"https://pinboard.in/add",params:{url:this.getValue("url"),title:this.getValue("title"),description:this.getValue("description")}},threema:{shareUrl:"threema://compose",params:{text:this.getValue("text"),id:this.getValue("id")}},kakaostory:{shareUrl:"https://story.kakao.com/share",params:{url:this.getValue("url")}},yummly:{shareUrl:"http://www.yummly.com/urb/verify",params:{url:this.getValue("url"),title:this.getValue("title"),yumtype:"button"}}}[t];return e&&(e.width=this.getValue("width"),e.height=this.getValue("height")),void 0!==e&&this.urlSharer(e)},urlSharer:function(e){var a,s=e.params||{},r=Object.keys(s),l=r.length>0?"?":"";for(a=0;a<r.length;a++)"?"!==l&&(l+="&"),s[r[a]]&&(l+=r[a]+"="+encodeURIComponent(s[r[a]]));if(e.shareUrl+=l,e.isLink)t.location.href=e.shareUrl;else{var i=e.width||600,h=e.height||480,u=t.innerWidth/2-i/2+t.screenX,o="scrollbars=no, width="+i+", height="+h+", top="+(t.innerHeight/2-h/2+t.screenY)+", left="+u,p=t.open(e.shareUrl,"",o);t.focus&&p.focus()}}},"complete"===e.readyState||"loading"!==e.readyState?a.init():e.addEventListener("DOMContentLoaded",a.init),t.Sharer=a}(window,document);
diff --git a/dist/styles/book.css b/dist/styles/book.css
index 2005700d9..0f7d5116e 100644
--- a/dist/styles/book.css
+++ b/dist/styles/book.css
@@ -1,2 +1,2 @@
 :root{--sk-size:40px;--sk-color:#333}.sk-center{margin:auto}.sk-plane{-webkit-animation:sk-plane 1.2s ease-in-out infinite;animation:sk-plane 1.2s ease-in-out infinite;background-color:var(--sk-color);height:var(--sk-size);width:var(--sk-size)}@-webkit-keyframes sk-plane{0%{transform:perspective(120px) rotateX(0) rotateY(0)}50%{transform:perspective(120px) rotateX(-180.1deg) rotateY(0)}to{transform:perspective(120px) rotateX(-180deg) rotateY(-179.9deg)}}@keyframes sk-plane{0%{transform:perspective(120px) rotateX(0) rotateY(0)}50%{transform:perspective(120px) rotateX(-180.1deg) rotateY(0)}to{transform:perspective(120px) rotateX(-180deg) rotateY(-179.9deg)}}.sk-chase{-webkit-animation:sk-chase 2.5s linear infinite both;animation:sk-chase 2.5s linear infinite both;height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-chase-dot{-webkit-animation:sk-chase-dot 2s ease-in-out infinite both;animation:sk-chase-dot 2s ease-in-out infinite both;height:100%;left:0;position:absolute;top:0;width:100%}.sk-chase-dot:before{-webkit-animation:sk-chase-dot-before 2s ease-in-out infinite both;animation:sk-chase-dot-before 2s ease-in-out infinite both;background-color:var(--sk-color);border-radius:100%;content:"";display:block;height:25%;width:25%}.sk-chase-dot:first-child{-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.sk-chase-dot:nth-child(2){-webkit-animation-delay:-1s;animation-delay:-1s}.sk-chase-dot:nth-child(3){-webkit-animation-delay:-.9s;animation-delay:-.9s}.sk-chase-dot:nth-child(4){-webkit-animation-delay:-.8s;animation-delay:-.8s}.sk-chase-dot:nth-child(5){-webkit-animation-delay:-.7s;animation-delay:-.7s}.sk-chase-dot:nth-child(6){-webkit-animation-delay:-.6s;animation-delay:-.6s}.sk-chase-dot:first-child:before{-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.sk-chase-dot:nth-child(2):before{-webkit-animation-delay:-1s;animation-delay:-1s}.sk-chase-dot:nth-child(3):before{-webkit-animation-delay:-.9s;animation-delay:-.9s}.sk-chase-dot:nth-child(4):before{-webkit-animation-delay:-.8s;animation-delay:-.8s}.sk-chase-dot:nth-child(5):before{-webkit-animation-delay:-.7s;animation-delay:-.7s}.sk-chase-dot:nth-child(6):before{-webkit-animation-delay:-.6s;animation-delay:-.6s}@-webkit-keyframes sk-chase{to{transform:rotate(1turn)}}@keyframes sk-chase{to{transform:rotate(1turn)}}@-webkit-keyframes sk-chase-dot{80%,to{transform:rotate(1turn)}}@keyframes sk-chase-dot{80%,to{transform:rotate(1turn)}}@-webkit-keyframes sk-chase-dot-before{50%{transform:scale(.4)}0%,to{transform:scale(1)}}@keyframes sk-chase-dot-before{50%{transform:scale(.4)}0%,to{transform:scale(1)}}.sk-bounce{height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-bounce-dot{-webkit-animation:sk-bounce 2s cubic-bezier(.455,.03,.515,.955) infinite;animation:sk-bounce 2s cubic-bezier(.455,.03,.515,.955) infinite;background-color:var(--sk-color);border-radius:50%;height:100%;left:0;opacity:.6;position:absolute;top:0;width:100%}.sk-bounce-dot:nth-child(2){-webkit-animation-delay:-1s;animation-delay:-1s}@-webkit-keyframes sk-bounce{0%,to{transform:scale(0)}45%,55%{transform:scale(1)}}@keyframes sk-bounce{0%,to{transform:scale(0)}45%,55%{transform:scale(1)}}.sk-wave{display:flex;height:var(--sk-size);justify-content:space-between;width:var(--sk-size)}.sk-wave-rect{-webkit-animation:sk-wave 1.2s ease-in-out infinite;animation:sk-wave 1.2s ease-in-out infinite;background-color:var(--sk-color);height:100%;width:15%}.sk-wave-rect:first-child{-webkit-animation-delay:-1.2s;animation-delay:-1.2s}.sk-wave-rect:nth-child(2){-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.sk-wave-rect:nth-child(3){-webkit-animation-delay:-1s;animation-delay:-1s}.sk-wave-rect:nth-child(4){-webkit-animation-delay:-.9s;animation-delay:-.9s}.sk-wave-rect:nth-child(5){-webkit-animation-delay:-.8s;animation-delay:-.8s}@-webkit-keyframes sk-wave{0%,40%,to{transform:scaleY(.4)}20%{transform:scaleY(1)}}@keyframes sk-wave{0%,40%,to{transform:scaleY(.4)}20%{transform:scaleY(1)}}.sk-pulse{-webkit-animation:sk-pulse 1.2s cubic-bezier(.455,.03,.515,.955) infinite;animation:sk-pulse 1.2s cubic-bezier(.455,.03,.515,.955) infinite;background-color:var(--sk-color);border-radius:100%;height:var(--sk-size);width:var(--sk-size)}@-webkit-keyframes sk-pulse{0%{transform:scale(0)}to{opacity:0;transform:scale(1)}}@keyframes sk-pulse{0%{transform:scale(0)}to{opacity:0;transform:scale(1)}}.sk-flow{display:flex;height:calc(var(--sk-size)*1.3);justify-content:space-between;width:calc(var(--sk-size)*1.3)}.sk-flow-dot{-webkit-animation:sk-flow 1.4s cubic-bezier(.455,.03,.515,.955) 0s infinite both;animation:sk-flow 1.4s cubic-bezier(.455,.03,.515,.955) 0s infinite both;background-color:var(--sk-color);border-radius:50%;height:25%;width:25%}.sk-flow-dot:first-child{-webkit-animation-delay:-.3s;animation-delay:-.3s}.sk-flow-dot:nth-child(2){-webkit-animation-delay:-.15s;animation-delay:-.15s}@-webkit-keyframes sk-flow{0%,80%,to{transform:scale(.3)}40%{transform:scale(1)}}@keyframes sk-flow{0%,80%,to{transform:scale(.3)}40%{transform:scale(1)}}.sk-swing{-webkit-animation:sk-swing 1.8s linear infinite;animation:sk-swing 1.8s linear infinite;height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-swing-dot{-webkit-animation:sk-swing-dot 2s ease-in-out infinite;animation:sk-swing-dot 2s ease-in-out infinite;background-color:var(--sk-color);border-radius:100%;height:45%;left:0;margin:auto;position:absolute;right:0;top:0;width:45%}.sk-swing-dot:nth-child(2){-webkit-animation-delay:-1s;animation-delay:-1s;bottom:0;top:auto}@-webkit-keyframes sk-swing{to{transform:rotate(1turn)}}@keyframes sk-swing{to{transform:rotate(1turn)}}@-webkit-keyframes sk-swing-dot{0%,to{transform:scale(.2)}50%{transform:scale(1)}}@keyframes sk-swing-dot{0%,to{transform:scale(.2)}50%{transform:scale(1)}}.sk-circle{height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-circle-dot{height:100%;left:0;position:absolute;top:0;width:100%}.sk-circle-dot:before{-webkit-animation:sk-circle 1.2s ease-in-out infinite both;animation:sk-circle 1.2s ease-in-out infinite both;background-color:var(--sk-color);border-radius:100%;content:"";display:block;height:15%;width:15%}.sk-circle-dot:first-child{transform:rotate(30deg)}.sk-circle-dot:nth-child(2){transform:rotate(60deg)}.sk-circle-dot:nth-child(3){transform:rotate(90deg)}.sk-circle-dot:nth-child(4){transform:rotate(120deg)}.sk-circle-dot:nth-child(5){transform:rotate(150deg)}.sk-circle-dot:nth-child(6){transform:rotate(180deg)}.sk-circle-dot:nth-child(7){transform:rotate(210deg)}.sk-circle-dot:nth-child(8){transform:rotate(240deg)}.sk-circle-dot:nth-child(9){transform:rotate(270deg)}.sk-circle-dot:nth-child(10){transform:rotate(300deg)}.sk-circle-dot:nth-child(11){transform:rotate(330deg)}.sk-circle-dot:first-child:before{-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.sk-circle-dot:nth-child(2):before{-webkit-animation-delay:-1s;animation-delay:-1s}.sk-circle-dot:nth-child(3):before{-webkit-animation-delay:-.9s;animation-delay:-.9s}.sk-circle-dot:nth-child(4):before{-webkit-animation-delay:-.8s;animation-delay:-.8s}.sk-circle-dot:nth-child(5):before{-webkit-animation-delay:-.7s;animation-delay:-.7s}.sk-circle-dot:nth-child(6):before{-webkit-animation-delay:-.6s;animation-delay:-.6s}.sk-circle-dot:nth-child(7):before{-webkit-animation-delay:-.5s;animation-delay:-.5s}.sk-circle-dot:nth-child(8):before{-webkit-animation-delay:-.4s;animation-delay:-.4s}.sk-circle-dot:nth-child(9):before{-webkit-animation-delay:-.3s;animation-delay:-.3s}.sk-circle-dot:nth-child(10):before{-webkit-animation-delay:-.2s;animation-delay:-.2s}.sk-circle-dot:nth-child(11):before{-webkit-animation-delay:-.1s;animation-delay:-.1s}@-webkit-keyframes sk-circle{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes sk-circle{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.sk-circle-fade{height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-circle-fade-dot{height:100%;left:0;position:absolute;top:0;width:100%}.sk-circle-fade-dot:before{-webkit-animation:sk-circle-fade 1.2s ease-in-out infinite both;animation:sk-circle-fade 1.2s ease-in-out infinite both;background-color:var(--sk-color);border-radius:100%;content:"";display:block;height:15%;width:15%}.sk-circle-fade-dot:first-child{transform:rotate(30deg)}.sk-circle-fade-dot:nth-child(2){transform:rotate(60deg)}.sk-circle-fade-dot:nth-child(3){transform:rotate(90deg)}.sk-circle-fade-dot:nth-child(4){transform:rotate(120deg)}.sk-circle-fade-dot:nth-child(5){transform:rotate(150deg)}.sk-circle-fade-dot:nth-child(6){transform:rotate(180deg)}.sk-circle-fade-dot:nth-child(7){transform:rotate(210deg)}.sk-circle-fade-dot:nth-child(8){transform:rotate(240deg)}.sk-circle-fade-dot:nth-child(9){transform:rotate(270deg)}.sk-circle-fade-dot:nth-child(10){transform:rotate(300deg)}.sk-circle-fade-dot:nth-child(11){transform:rotate(330deg)}.sk-circle-fade-dot:first-child:before{-webkit-animation-delay:-1.1s;animation-delay:-1.1s}.sk-circle-fade-dot:nth-child(2):before{-webkit-animation-delay:-1s;animation-delay:-1s}.sk-circle-fade-dot:nth-child(3):before{-webkit-animation-delay:-.9s;animation-delay:-.9s}.sk-circle-fade-dot:nth-child(4):before{-webkit-animation-delay:-.8s;animation-delay:-.8s}.sk-circle-fade-dot:nth-child(5):before{-webkit-animation-delay:-.7s;animation-delay:-.7s}.sk-circle-fade-dot:nth-child(6):before{-webkit-animation-delay:-.6s;animation-delay:-.6s}.sk-circle-fade-dot:nth-child(7):before{-webkit-animation-delay:-.5s;animation-delay:-.5s}.sk-circle-fade-dot:nth-child(8):before{-webkit-animation-delay:-.4s;animation-delay:-.4s}.sk-circle-fade-dot:nth-child(9):before{-webkit-animation-delay:-.3s;animation-delay:-.3s}.sk-circle-fade-dot:nth-child(10):before{-webkit-animation-delay:-.2s;animation-delay:-.2s}.sk-circle-fade-dot:nth-child(11):before{-webkit-animation-delay:-.1s;animation-delay:-.1s}@-webkit-keyframes sk-circle-fade{0%,39%,to{opacity:0;transform:scale(.6)}40%{opacity:1;transform:scale(1)}}@keyframes sk-circle-fade{0%,39%,to{opacity:0;transform:scale(.6)}40%{opacity:1;transform:scale(1)}}.sk-grid{height:var(--sk-size);width:var(--sk-size)}.sk-grid-cube{-webkit-animation:sk-grid 1.3s ease-in-out infinite;animation:sk-grid 1.3s ease-in-out infinite;background-color:var(--sk-color);float:left;height:33.33%;width:33.33%}.sk-grid-cube:first-child{-webkit-animation-delay:.2s;animation-delay:.2s}.sk-grid-cube:nth-child(2){-webkit-animation-delay:.3s;animation-delay:.3s}.sk-grid-cube:nth-child(3){-webkit-animation-delay:.4s;animation-delay:.4s}.sk-grid-cube:nth-child(4){-webkit-animation-delay:.1s;animation-delay:.1s}.sk-grid-cube:nth-child(5){-webkit-animation-delay:.2s;animation-delay:.2s}.sk-grid-cube:nth-child(6){-webkit-animation-delay:.3s;animation-delay:.3s}.sk-grid-cube:nth-child(7){-webkit-animation-delay:0s;animation-delay:0s}.sk-grid-cube:nth-child(8){-webkit-animation-delay:.1s;animation-delay:.1s}.sk-grid-cube:nth-child(9){-webkit-animation-delay:.2s;animation-delay:.2s}@-webkit-keyframes sk-grid{0%,70%,to{transform:scaleX(1)}35%{transform:scale3D(0,0,1)}}@keyframes sk-grid{0%,70%,to{transform:scaleX(1)}35%{transform:scale3D(0,0,1)}}.sk-fold{height:var(--sk-size);position:relative;transform:rotate(45deg);width:var(--sk-size)}.sk-fold-cube{float:left;height:50%;position:relative;transform:scale(1.1);width:50%}.sk-fold-cube:before{-webkit-animation:sk-fold 2.4s linear infinite both;animation:sk-fold 2.4s linear infinite both;background-color:var(--sk-color);content:"";height:100%;left:0;position:absolute;top:0;transform-origin:100% 100%;width:100%}.sk-fold-cube:nth-child(2){transform:scale(1.1) rotate(90deg)}.sk-fold-cube:nth-child(4){transform:scale(1.1) rotate(180deg)}.sk-fold-cube:nth-child(3){transform:scale(1.1) rotate(270deg)}.sk-fold-cube:nth-child(2):before{-webkit-animation-delay:.3s;animation-delay:.3s}.sk-fold-cube:nth-child(4):before{-webkit-animation-delay:.6s;animation-delay:.6s}.sk-fold-cube:nth-child(3):before{-webkit-animation-delay:.9s;animation-delay:.9s}@-webkit-keyframes sk-fold{0%,10%{opacity:0;transform:perspective(140px) rotateX(-180deg)}25%,75%{opacity:1;transform:perspective(140px) rotateX(0)}90%,to{opacity:0;transform:perspective(140px) rotateY(180deg)}}@keyframes sk-fold{0%,10%{opacity:0;transform:perspective(140px) rotateX(-180deg)}25%,75%{opacity:1;transform:perspective(140px) rotateX(0)}90%,to{opacity:0;transform:perspective(140px) rotateY(180deg)}}.sk-wander{height:var(--sk-size);position:relative;width:var(--sk-size)}.sk-wander-cube{--sk-wander-distance:calc(var(--sk-size)*0.75);-webkit-animation:sk-wander 2s ease-in-out -2s infinite both;animation:sk-wander 2s ease-in-out -2s infinite both;background-color:var(--sk-color);height:20%;left:0;position:absolute;top:0;width:20%}.sk-wander-cube:nth-child(2){-webkit-animation-delay:-.5s;animation-delay:-.5s}.sk-wander-cube:nth-child(3){-webkit-animation-delay:-1s;animation-delay:-1s}@-webkit-keyframes sk-wander{0%{transform:rotate(0)}25%{transform:translateX(var(--sk-wander-distance)) rotate(-90deg) scale(.6)}50%{transform:translateX(var(--sk-wander-distance)) translateY(var(--sk-wander-distance)) rotate(-179deg)}50.1%{transform:translateX(var(--sk-wander-distance)) translateY(var(--sk-wander-distance)) rotate(-180deg)}75%{transform:translateX(0) translateY(var(--sk-wander-distance)) rotate(-270deg) scale(.6)}to{transform:rotate(-1turn)}}@keyframes sk-wander{0%{transform:rotate(0)}25%{transform:translateX(var(--sk-wander-distance)) rotate(-90deg) scale(.6)}50%{transform:translateX(var(--sk-wander-distance)) translateY(var(--sk-wander-distance)) rotate(-179deg)}50.1%{transform:translateX(var(--sk-wander-distance)) translateY(var(--sk-wander-distance)) rotate(-180deg)}75%{transform:translateX(0) translateY(var(--sk-wander-distance)) rotate(-270deg) scale(.6)}to{transform:rotate(-1turn)}}
-*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0);font-family:sans-serif;line-height:1.15}@-ms-viewport{width:device-width}article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}body{background-color:var(--body-bg);color:var(--body-text);font-family:Spectral,serif;font-size:1rem;font-weight:400;line-height:1.5;margin:0;text-align:left}[tabindex="-1"]:focus{outline:none!important}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6,p{margin-top:0}p{margin-bottom:1rem}abbr[data-original-title],abbr[title]{border-bottom:0;cursor:help;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit}address,dl,ol,ul{margin-bottom:1rem}dl,ol,ul{margin-top:0}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:600}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{-webkit-text-decoration-skip:objects;background-color:transparent;color:var(--primary);text-decoration:none}a:focus,a:hover{color:var(--primary-dark);text-decoration:underline}code,kbd,pre,samp{font-family:monospace,monospace;font-size:1em}pre{-ms-overflow-style:scrollbar;margin-bottom:1rem;margin-top:0;overflow:auto}figure{margin:0 0 1rem}img{border-style:none;vertical-align:middle}svg:not(:root){overflow:hidden}[role=button],a,area,button,input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{caption-side:bottom;color:#888;padding-bottom:.75rem;padding-top:.75rem;text-align:left}th{text-align:inherit}label{display:inline-block;margin-bottom:.5rem}button{border-radius:0}button:focus{outline:1px dotted;outline:5px auto -webkit-focus-ring-color}button,input,optgroup,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=submit],button,html [type=button]{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{border:0;margin:0;min-width:0;padding:0}legend{color:inherit;display:block;font-size:1.5rem;line-height:inherit;margin-bottom:.5rem;max-width:100%;padding:0;white-space:normal;width:100%}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:none;outline-offset:-2px}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}:root{--primary:#b01109;--primary-dark:#7f0c07;--primary-alpha:rgba(176,17,9,0.25);--primary-fg:#fff;--accent:#015d75;--accent-alpha:rgba(1,93,117,0.25);--accent-dark:#013542;--accent-fg:#fff;--success:#070;--error:#d00;--warning:#e90;--body-bg:#fff;--body-bg-alt:#f6f6f6;--body-text:#222;--header-bg:#fff;--header-text:#222;--footer-bg:#444;--footer-text:#fff}.content-max-width{margin:0 auto;max-width:1330px}img{max-width:100%}.clearfix:after{clear:both;content:"";display:block}.focusable:focus{outline:none}.has-focus{background:#ff0}.a11y-toolbar{margin:0 auto;padding:0 1rem;position:fixed;text-align:right;top:0;width:100vw;z-index:99999}.a11y-fontsize{background-color:var(--primary-fg);border-color:var(--primary);border-top:0;border-top-left-radius:0;border-top-right-radius:0;color:var(--primary);font-size:1rem;font-weight:400;line-height:1.5;margin:0;padding:.25rem .875rem;text-align:center;text-transform:none}.a11y-fontsize.focus,.a11y-fontsize:focus,.a11y-fontsize:hover{background-color:var(--primary-fg);border-color:var(--primary-dark);color:var(--primary-dark)}.a11y-fontsize.focus,.a11y-fontsize:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.a11y-fontsize.active,.a11y-fontsize:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.fontsize{font-size:22px}.screen-reader-text{clip:rect(1px,1px,1px,1px);word-wrap:normal!important;border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute!important;width:1px}.screen-reader-text:focus{clip:auto!important;background-color:var(--body-bg);border-radius:3px;box-shadow:0 0 2px 2px rgba(0,0,0,.6);-webkit-clip-path:none;clip-path:none;color:var(--body-text);display:block;font-size:.875rem;font-weight:700;height:auto;left:5px;line-height:normal;padding:15px 23px 14px;text-decoration:none;top:5px;width:auto;z-index:100000}.button,a.call-to-action,button,input[type=submit]{border-radius:3px;border-style:solid;border-width:2px;display:inline-block;font-family:Karla,sans-serif;font-weight:600;line-height:1.5;padding:.875rem 3.25rem;text-align:center;text-decoration:none;text-transform:uppercase;vertical-align:middle}.button.focus,.button:focus,.button:hover,a.call-to-action.focus,a.call-to-action:focus,a.call-to-action:hover,button.focus,button:focus,button:hover,input[type=submit].focus,input[type=submit]:focus,input[type=submit]:hover{text-decoration:none}.button.focus,.button:focus,a.call-to-action.focus,a.call-to-action:focus,button.focus,button:focus,input[type=submit].focus,input[type=submit]:focus{outline:0}.button.disabled,.button:disabled,a.call-to-action.disabled,a.call-to-action:disabled,button.disabled,button:disabled,input[type=submit].disabled,input[type=submit]:disabled{box-shadow:none;opacity:.65}.button.active,.button:active,a.call-to-action.active,a.call-to-action:active,button.active,button:active,input[type=submit].active,input[type=submit]:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button,button,input[type=submit]{background-color:var(--primary);border-color:var(--primary);color:var(--primary-fg)}.button.focus,.button:focus,.button:hover,button.focus,button:focus,button:hover,input[type=submit].focus,input[type=submit]:focus,input[type=submit]:hover{background-color:var(--primary-dark);border-color:var(--primary-dark);color:var(--primary-fg)}.button.focus,.button:focus,button.focus,button:focus,input[type=submit].focus,input[type=submit]:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.button.button--accent,button.button--accent,input[type=submit].button--accent{background-color:var(--accent);border-color:var(--accent);color:var(--accent-fg)}.button.button--accent.focus,.button.button--accent:focus,.button.button--accent:hover,button.button--accent.focus,button.button--accent:focus,button.button--accent:hover,input[type=submit].button--accent.focus,input[type=submit].button--accent:focus,input[type=submit].button--accent:hover{background-color:var(--accent-dark);border-color:var(--accent-dark);color:var(--accent-fg)}.button.button--accent.focus,.button.button--accent:focus,button.button--accent.focus,button.button--accent:focus,input[type=submit].button--accent.focus,input[type=submit].button--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.button.button--accent.active,.button.button--accent:active,button.button--accent.active,button.button--accent:active,input[type=submit].button--accent.active,input[type=submit].button--accent:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.call-to-action{background-color:var(--primary-fg);border-color:var(--primary);color:var(--primary)}.call-to-action.focus,.call-to-action:focus,.call-to-action:hover{background-color:var(--primary-fg);border-color:var(--primary-dark);color:var(--primary-dark)}.call-to-action.focus,.call-to-action:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.call-to-action.call-to-action--accent{background-color:var(--accent-fg);border-color:var(--accent);color:var(--accent)}.call-to-action.call-to-action--accent.focus,.call-to-action.call-to-action--accent:focus,.call-to-action.call-to-action--accent:hover{background-color:var(--accent-fg);border-color:var(--accent-dark);color:var(--accent-dark)}.call-to-action.call-to-action--accent.focus,.call-to-action.call-to-action--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.call-to-action.call-to-action--accent.active,.call-to-action.call-to-action--accent:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}[class$="--accent"] .call-to-action{background-color:var(--accent);border-color:var(--accent-fg);color:var(--accent-fg)}[class$="--accent"] .call-to-action.focus,[class$="--accent"] .call-to-action:focus,[class$="--accent"] .call-to-action:hover{background-color:var(--accent-dark);border-color:var(--accent-fg);color:var(--accent-fg)}[class$="--accent"] .call-to-action.focus,[class$="--accent"] .call-to-action:focus{box-shadow:0 0 0 2px var(--accent-dark),0 0 0 4px var(--accent-fg)}[class$="--accent"] .call-to-action.active,[class$="--accent"] .call-to-action:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button--circle{align-items:center;background-color:var(--primary);border:2px solid var(--primary);border-radius:50%;color:var(--primary-fg);display:flex;height:3.75rem;justify-content:center;width:3.75rem}.button--circle.focus,.button--circle:focus,.button--circle:hover{background-color:var(--primary-dark);border-color:var(--primary-dark);color:var(--primary-fg);text-decoration:none}.button--circle.focus,.button--circle:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.button--circle.active,.button--circle:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button--circle--accent{background-color:var(--accent);color:var(--accent-fg)}.button--circle--accent.focus,.button--circle--accent:focus,.button--circle--accent:hover{background-color:var(--accent-dark);border-color:var(--accent-dark);color:var(--accent-fg)}.button--circle--accent.focus,.button--circle--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.button--circle--accent.active,.button--circle--accent:active{box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.dropdown>p{margin-bottom:0}.dropdown button{background:transparent;border:0;border-bottom:3px solid var(--header-color);border-radius:0;color:var(--header-color);padding:0 0 .5rem;text-align:left;text-transform:none;width:100%}.dropdown button:focus,.dropdown button:hover{border-bottom-color:var(--primary-dark,#7f0c07);color:var(--primary-dark,#7f0c07)}.dropdown button:active{box-shadow:unset}.dropdown button .arrow{display:block;float:right;margin-top:.5rem}.dropdown [aria-expanded=true] .arrow{transform:rotate(180deg)}.dropdown-menu{background-clip:padding-box;background-color:var(--body-bg);border:2px solid rgba(0,0,0,.15);border-radius:3px;box-shadow:0 .5rem 1rem rgba(0,0,0,.175);color:#222;display:none;float:left;font-size:1rem;left:0;list-style:none;margin:.125rem 0 0;min-width:10rem;padding:.5rem 0;position:absolute;text-align:left;top:100%;z-index:1000}.dropdown-menu.dropdown-menu-block{width:100%}.dropup .dropdown-menu{margin-bottom:.125rem;margin-top:0}.dropup .dropdown-toggle:after{border-bottom:.3em solid;border-top:0}.dropdown-item{background:var(--body-bg-alt);border:0;clear:both;color:#222;display:block;font-weight:400;padding:.25rem 1.5rem;text-align:inherit;white-space:nowrap;width:100%}.dropdown-item:focus,.dropdown-item:hover{background-color:var(--accent);color:#151515;text-decoration:none}.dropdown-item.active,.dropdown-item:active{background-color:var(--accent);color:var(--primary);text-decoration:none}.dropdown-item.disabled,.dropdown-item:disabled{background-color:transparent;color:#888}.show>a{outline:0}.dropdown-menu.show{display:block}.dropdown-header{color:#888;display:block;font-size:.875rem;margin-bottom:0;padding:.5rem 1.5rem;white-space:nowrap}.alignleft{float:left;margin-right:1.5em}.alignright{float:right;margin-left:1.5em}.aligncenter{clear:both}.block-reading-meta{background-color:var(--body-bg-alt);font-family:Karla,sans-serif;padding:2rem 1rem 4rem}@media screen and (min-width:768px){.block-reading-meta{padding:2rem 1rem 2.25rem}}.block-reading-meta .license-attribution{font-size:1rem}.block-reading-meta .license-attribution img{height:2rem;margin-bottom:1rem;width:auto}.block-reading-meta__inner{display:flex;flex-wrap:wrap;margin:0 auto;max-width:1200px}.block-reading-meta__subsection{flex:1;min-width:300px;padding-right:2rem}.block-reading-meta__subtitle{color:var(--primary);font-size:1.25rem;margin-bottom:1rem;text-align:left}.block-reading-meta__subtitle:before{display:none}.block-reading-meta__share{align-items:center;display:flex}.block-reading-meta__share>:first-child{margin-left:0}.block-reading-meta__share svg{height:2rem;width:3rem}html{-webkit-font-smoothing:antialiased}main *+p{margin-top:1.5em}h1,h2,h3,h4,h5,h6{font-family:Karla,sans-serif;font-weight:700;line-height:1.5;margin-bottom:.5rem}h1 a,h1 a:active,h1 a:hover,h1 a:visited,h2 a,h2 a:active,h2 a:hover,h2 a:visited,h3 a,h3 a:active,h3 a:hover,h3 a:visited,h4 a,h4 a:active,h4 a:hover,h4 a:visited,h5 a,h5 a:active,h5 a:hover,h5 a:visited,h6 a,h6 a:active,h6 a:hover,h6 a:visited{color:inherit}.home h1,.home h2,.home h3,.home h4,.home h5,.home h6{color:var(--primary)}h1{font-size:2.25rem;text-align:center;text-transform:uppercase}h1:before{background:var(--accent);content:"";display:block;height:.3125rem;margin:.5rem auto 1rem;width:2.8125rem}@media screen and (min-width:60rem){h1:before{margin-bottom:2rem;width:4.6875rem}}@media screen and (min-width:768px){h1{font-size:3rem}}h2{font-size:1.875rem;font-weight:600;margin-bottom:2rem;text-align:center;text-transform:uppercase}h2:before{background:var(--accent);content:"";display:block;height:.3125rem;margin:.5rem auto 1rem;width:2.8125rem}@media screen and (min-width:60rem){h2:before{margin-bottom:2rem;width:4.6875rem}}@media screen and (min-width:768px){h2{font-size:2.25rem}}h3{font-size:2.25rem}h4{font-size:1.875rem}h5{font-size:1.5rem}h6{font-size:1.25rem}ol,p,ul{font-size:1.125rem;line-height:1.5}.page-section{background:var(--body-bg);padding:4rem 1rem;text-align:center;width:100%}.page-section ol,.page-section ul{list-style-position:inside;padding-left:0}.page-section--accent{background:var(--accent)}.page-section--accent,.page-section--accent h2{color:var(--accent-fg)}.page-section--accent h2:before{background:var(--accent-fg)}.page-section--bordered{border:4px solid var(--accent);margin:5rem auto 0;width:calc(100% - 2rem)}.page-section--borderless{box-shadow:none}.block__subtitle{font-size:1.5rem;margin-bottom:1rem;text-transform:uppercase}@media screen and (min-width:768px){.block__subtitle{margin-bottom:1.5rem}}.block-toggle__cta{position:relative;text-align:center}@media screen and (min-width:60rem){.block-toggle__cta{display:none}}.block-toggle__cta__blurb{font-size:.875rem;margin-bottom:0;padding-bottom:2.5rem}.block-toggle__cta__button{bottom:0;color:var(--primary-fg);cursor:pointer;font-size:1.5rem;left:50%;margin:0;position:absolute;transform:translate(-50%,50%);z-index:10}.block-toggle__cta__button svg{height:2rem;width:1.5rem}.block-toggle__cta__button.--visible svg{transform:rotate(180deg)}.block.block-toggle{padding-bottom:0}@media screen and (max-width:59.975rem){.block.block-toggle.block-toggle--visible .block-toggle__cta__blurb,.block.block-toggle:not(.block-toggle--visible) .block-toggle__content{display:none}}.block.block-toggle.block-meta{padding-bottom:6rem}@media screen and (min-width:60rem){.has-sections .entry-content{display:flex;flex-wrap:wrap;justify-content:space-around;max-width:90rem;width:100%}.page-section{box-shadow:-3px 5px 4px 2px hsla(0,0%,53%,.09);margin:4rem auto;max-width:50rem;padding:4rem 5.625rem;width:100%}.page-section:first-of-type,.page-section:nth-of-type(2){width:calc(50% - 4rem)}.page-section--bordered,.page-section:only-of-type{max-width:50rem;width:100%}.page-section--bordered{box-shadow:none;margin:4rem auto}.page-section--bordered:first-of-type,.page-section--bordered:nth-of-type(2){width:calc(50% - 4rem)}.page-section--bordered:only-of-type{max-width:50rem;width:100%}}.home h1{text-transform:none}.home h1:before{display:none}.page:not(.has-sections) article{background:var(--body-bg);padding:4rem 1rem;text-align:left;width:100%}@media screen and (min-width:60rem){.page:not(.has-sections) article{box-shadow:-3px 5px 4px 2px hsla(0,0%,53%,.09);margin:-80% auto 4rem;max-width:50rem;padding:4rem 5.625rem;width:100%}}.page:not(.has-sections) .entry-header{margin-bottom:2rem}#content{background-color:var(--body-bg);margin:0 auto;position:relative;width:100%}@media screen and (min-width:60rem){#content{width:var(--reading-width,40em)}}#content .wp-caption,#content .wp-nocaption,#content img{height:auto;max-width:100%}.single #content{margin-bottom:0;min-height:350px}.edit-link{margin-top:5rem}@media print{body{background:none}a{color:#000}#wrap{clear:both;display:block;float:none;margin:0 auto;position:relative}#header{border-bottom:2pt solid #000;padding-bottom:18pt}.entry-content{font-size:14pt;line-height:1.6em}.entry-title{font-size:21pt}#branding img,#comments,#respond,#searchform,.comment-edit-link,.edit-link,.nav,.navigation,.page-link,.share-wrap-single,.sidebar,.widget-area{display:none}#container,#header,.footer{margin:0;width:100%}.footer,nav{background:#fff;color:#000}#content{margin:24pt 0 0;padding:10px;width:100%}.wp-caption p{font-size:11pt}.home .sticky{border:0}.wrapper{height:auto;margin:0 auto;min-height:100px}}.footer{--brand:var(--footer-color);--primary-dark:var(--footer-color);background-color:#444;color:#fff;font-family:Karla,sans-serif;padding:0 0 2rem}.footer h1,.footer h2,.footer h3,.footer h4,.footer h5,.footer h6{font-size:1.125rem;font-weight:600;margin-bottom:1rem}.footer h1:before,.footer h2:before,.footer h3:before,.footer h4:before,.footer h5:before,.footer h6:before{display:none}.footer.footer--home{padding-top:4rem}.footer.footer--reading{padding-bottom:7rem}@media screen and (min-width:48rem){.footer.footer--reading{padding-bottom:4rem}}@media screen and (min-width:1330px){.footer.footer--reading{padding-bottom:1rem}}@media screen and (min-width:768px){.footer{flex-direction:row;padding-bottom:.5rem}}.footer__inner{margin:0 auto}.footer__pressbooks{align-items:center;display:flex;flex-direction:column;justify-content:space-between;margin:2rem auto 0;max-width:1330px}@media screen and (min-width:768px){.footer__pressbooks{flex-direction:row;margin:2rem auto}}.footer__pressbooks a{color:var(--footer-text)}.footer__pressbooks__icon{margin:0 1rem}.footer__pressbooks__icon>.icon--svg{height:2.8125rem;width:2.8125rem}.footer__pressbooks__links{margin-bottom:1.5rem;margin-top:1.5rem;padding:0 1.875rem}@media screen and (min-width:768px){.footer__pressbooks__links{margin:0;padding:0}}.footer__pressbooks__links__list{display:flex;flex-wrap:wrap;font-size:.875rem;justify-content:center;list-style:none;margin:0;padding-left:0}.footer__pressbooks__links__list li{padding:.125rem 0}.footer__pressbooks__links__list a{padding-left:.5rem;padding-right:.5rem}.footer__pressbooks__links__title{font-size:1rem;font-weight:600;text-align:center}.footer__pressbooks__social{align-items:center;display:flex;margin:0 1rem}.footer__pressbooks__social a{margin:0 .25em}.footer__pressbooks__social a>.icon--svg{height:2rem;width:2rem}.footer__pressbooks__social a>.youtube-link{height:2.2em;margin-right:.2em;padding-bottom:.6em;width:auto}@media (min-width:960px){.footer__pressbooks__social a>.icon--svg{height:1.5rem;width:1.5rem}.footer__pressbooks__social a>.youtube-link{height:1.9em;margin-right:.2em;padding-bottom:.7em;width:auto}}.footer__network{background-color:var(--accent,#015d75);color:var(--accent-fg);font-family:Karla,sans-serif;font-size:1rem;height:auto;margin-bottom:0;padding:2.5rem 1.875rem;text-align:center}.footer__network .social-media{margin-top:1em}.footer__network .social-media a{height:2rem;margin:0 .25em;transition:all .4s;width:2rem}.footer__network .social-media a>.icon--svg{height:2rem;width:2rem}.footer__network ul{font-weight:600;line-height:2.25;list-style:none;margin:0;padding:0;text-align:center}.footer__network__block{border-top:1px solid var(--accent-fg)}.footer__network__block:first-of-type{border-top:0}.footer__network__block a{border-bottom:1px solid transparent;color:var(--accent-fg);text-decoration:none}.footer__network__block a:focus,.footer__network__block a:hover{border-bottom:1px solid var(--accent-fg)}.footer__network__block--1{margin:0 -5px;padding:0 0 40px}.footer__network__block--2{padding:30px 7.5px}.footer__network__block--2 .widget{margin-bottom:1em}.footer__network__menu{padding:30px 7.5px 0}.footer__network__block .social-media{margin-top:0;width:100%}.footer__network__block .social-media a{border-bottom:none;margin:0 .5em 0 0}.footer__network__block .social-media a:focus,.footer__network__block .social-media a:hover{border-bottom:none}@media (min-width:960px){.footer__network{display:flex;flex-direction:row;justify-content:center}.footer__network ul{text-align:left}.footer__network__block{align-items:center;border-right:1px solid var(--accent-fg);border-top:0;display:flex;margin:0;padding:0 3.75rem}.footer__network__block,.footer__network__block--2{flex-direction:column;justify-content:center}.footer__network__block:last-of-type{border-right:0}.social-media a{margin:0 .5em 0 0}.social-media a,.social-media a>.icon--svg{height:1.5rem;width:1.5rem}}@media (min-width:1650px){.footer__network ul li{display:inline-block;margin-right:3em}}.header{font-family:Karla,sans-serif;padding:3.5rem 1rem 1.5rem}@media screen and (min-width:60rem){.header{padding:3rem 1rem}}.header__inside{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1440px}.header__logo--img,.header__logo--svg{display:inline-block;height:auto;margin-bottom:-1px;margin-right:2px;max-height:1.5rem;max-width:100px;width:auto}@media screen and (min-width:30rem) and (max-width:60rem){.header__logo--img,.header__logo--svg{max-width:150px}}@media screen and (min-width:60rem){.header__logo--img,.header__logo--svg{max-height:30px;max-width:200px}}.header__nav-icon{display:block;height:20px;position:relative;text-indent:-9999em;width:25px;z-index:999}@media screen and (min-width:60rem){.header__nav-icon{display:none}}.header__nav-icon__icon{background:var(--primary);display:block;height:3px;position:absolute;top:7px;width:25px}.header__nav-icon__icon:after,.header__nav-icon__icon:before{background:var(--primary);content:"";height:3px;width:25px}.header__nav-icon__icon:before{position:absolute;right:0;top:-7px}.header__nav-icon__icon:after{position:absolute;right:0;top:7px}.header__nav--active .header__nav-icon__icon{--header-bg:var(--primary);--header-text:var(--primary-fg);background:var(--header-text);color:var(--header-text)}.header__nav--active .header__nav-icon__icon:after,.header__nav--active .header__nav-icon__icon:before{background:var(--header-text)}.js-header-nav .nav--primary{list-style:none;margin-bottom:0;padding-left:0}.js-header-nav .nav--primary li{display:inline;font-size:1.125rem;padding-left:1rem}@media screen and (max-width:59.975rem){.js-header-nav{display:flex;flex-direction:column;justify-content:center;left:0;margin:0 0 0 -100%;padding:0 17px;position:absolute;top:0;width:100%}.js-header-nav .nav--primary li{display:block;padding-left:0}.js-header-nav a{color:var(--header-color);display:none;font-family:Karla,sans-serif;font-size:1.5rem;letter-spacing:0;line-height:3.3333333333}.header__nav--active .js-header-nav{--header-color:var(--primary-fg);background:var(--primary);margin:0;padding:6rem 52px;z-index:99}.header__nav--active .js-header-nav .nav--primary li{border-bottom:1px solid var(--header-color)}.header__nav--active .js-header-nav .nav--primary li:last-child{border-bottom:0}.header__nav--active .js-header-nav a{display:block;width:100%}.header__nav--active .js-header-nav a:hover{color:var(--header-color)}}.header--home{--brand:var(--header-color);--primary-dark:var(--header-color);--brand-accent:var(--header-color);background-color:var(--header-bg);color:var(--header-color)}.header__search{position:relative}.icon-search{vertical-align:middle}.header:not(.header--home) .icon-search{cursor:pointer;font-size:1.5rem}.header__search__form{display:inline-block;position:relative;width:12rem}.header__search__form label{left:0;position:absolute;width:12rem}.header__search__form label .icon--svg{display:inline-block;float:right;height:2rem;vertical-align:middle;width:1.5rem}.header__search__form input[type=search]{background-color:transparent;border:0;border-bottom:2px solid var(--primary);color:var(--body-color);width:12rem}.header__search__form input[type=search]:focus{border-color:var(--brand-orig)}.header__search__form input[type=search]:focus+label{text-indent:-999999rem}.header--home .header__search__form input[type=search]{border-bottom:1px solid var(--header-color);color:var(--header-color)}.header--home .header__search__form input[type=search]:focus{border-color:var(--brand-orig)}.header__search__form input[type=submit]{display:none}.nocomments{text-align:center}.section-comments{--primary-dark:var(--footer-color);--accent:var(--footer-color);background-color:var(--footer-bg);color:#fff;font-family:Karla,sans-serif;padding:2rem 1rem 2.25rem}@media screen and (min-width:768px){.section-comments{padding:4.5rem 1rem 2.5rem}}.section-comments a{color:var(--footer-color);text-decoration:underline}.section-comments a:focus,.section-comments a:hover{color:var(--primary);text-decoration:underline}.section-comments__inner{margin:0 auto;max-width:var(--reading-width,40em)}.section__title.section-comments__title{font-size:1.5rem}.section__title.section-comments__title:before{background:var(--footer-color);margin:0 auto 1rem;width:2.875rem}.section-comments__form{margin:0 auto;max-width:25rem}@media screen and (min-width:60rem){.section-comments__form{max-width:none}}.comment-reply-title{display:none}.comment-notes{text-align:center}.comment-form-author,.comment-form-comment,.comment-form-email,.comment-form-url{margin-bottom:1.25rem;margin-top:0;overflow:hidden}@media screen and (min-width:60rem){.comment-form-author,.comment-form-comment,.comment-form-email,.comment-form-url{margin-bottom:1.25rem}}.comment-form-comment{margin-bottom:1.25rem}@media screen and (min-width:60rem){.comment-form-comment{float:right;margin-bottom:0}}#commentform label{display:block;font-size:.875rem}#commentform input,#commentform textarea{padding:.375rem .75rem;width:25rem}@media screen and (min-width:60rem){#commentform input,#commentform textarea{width:18.75rem}}#commentform input{font-size:.875em}#respond .form-allowed-tags{font-size:.7em;line-height:1.2em;margin:10px 0 0 170px;width:350px}.form-submit{margin-top:2rem;text-align:center}@media screen and (min-width:60rem){.form-submit{text-align:right;width:18.75rem}}.comment-form-comment+.form-submit{margin-top:2.8rem}#comments-title{font-size:1.125rem}.commentlist{list-style-type:none;padding-left:0}.form-submit input#submit{height:auto;width:auto}.block-reading-meta__compare{margin-bottom:2rem;width:100%}.no-js .block-reading-meta__compare{display:none}.block-reading-meta__compare del,.block-reading-meta__compare ins{margin:0 .1rem;padding:.2rem;word-break:break-word}.block-reading-meta__compare del{background:#faa;color:#000;text-decoration:none}.block-reading-meta__compare ins{background:#afa;color:#000;text-decoration:none}.block-reading-meta__compare__activity.sk-double-bounce{margin-left:0}.block-reading-meta__compare__toggle[aria-expanded=true]{box-shadow:inset 0 .1rem 0 .1rem var(--primary-dark);padding-bottom:.75rem;padding-top:1rem}.block-reading-meta__compare__comparison{margin:2em auto;width:100%}.block-reading-meta__compare .diff{font-family:Inconsolata,monospace;font-size:1rem;margin:2rem 0 0;min-width:40rem;overflow:scroll;white-space:pre-wrap}.block-reading-meta__compare .diff tr{border-bottom:0;display:grid;grid-template-columns:48% 1fr 48%}.block-reading-meta__compare .diff .diff-addedline,.block-reading-meta__compare .diff .diff-context,.block-reading-meta__compare .diff .diff-deletedline{background-color:#fff;padding:1rem;vertical-align:top}.block-reading-meta__compare .diff .diff-context{background-color:#fff}.block-reading-meta__compare .diff .diff-addedline{background-color:#e9ffe9}.block-reading-meta__compare .diff .diff-deletedline{background-color:#ffe9e9}.alert{border-radius:.5rem;padding:1rem}.alert.visually-hidden{clip:rect(1px,1px,1px,1px);height:1px;overflow:hidden;position:absolute;width:1px}.alert--error{background:#f8d7da;color:#721c24}.header__search .header__search__form{width:100%}@media screen and (min-width:60rem){.header__search .header__search__form{width:12rem}}.error404 form.search-form,.header__search .header__search__form form{border-bottom:1px solid var(--primary-fg);width:100%}.error404 form.search-form label,.header__search .header__search__form form label{margin-bottom:0;position:relative;width:calc(100% - 2rem)}.error404 form.search-form input,.header__search .header__search__form form input{border-left:0;border-right:0;border-top:0;color:#fff;font-size:1.5rem;line-height:3.33333333;width:100%}.error404 form.search-form input::-moz-placeholder,.header__search .header__search__form form input::-moz-placeholder{color:var(--primary-fg)}.error404 form.search-form input:-ms-input-placeholder,.header__search .header__search__form form input:-ms-input-placeholder{color:var(--primary-fg)}.error404 form.search-form input::placeholder,.header__search .header__search__form form input::placeholder{color:var(--primary-fg)}.error404 form.search-form button,.header__search .header__search__form form button{background:transparent;border:0;color:var(--primary-fg);display:inline-block;padding:0;width:1.5rem}.error404 form.search-form button svg,.header__search .header__search__form form button svg{display:inline-block;height:1.5rem;vertical-align:middle;width:1.25rem}@media screen and (min-width:60rem){.error404 form.search-form,.header__search .header__search__form form{border-bottom:none}.error404 form.search-form label,.header__search .header__search__form form label{width:10rem}.error404 form.search-form input,.header__search .header__search__form form input{border-bottom:2px solid var(--primary);color:var(--primary);font-size:1.125rem;line-height:1.5}.error404 form.search-form input::-moz-placeholder,.header__search .header__search__form form input::-moz-placeholder{color:#666}.error404 form.search-form input:-ms-input-placeholder,.header__search .header__search__form form input:-ms-input-placeholder{color:#666}.error404 form.search-form input::placeholder,.header__search .header__search__form form input::placeholder{color:#666}.error404 form.search-form input:focus,.header__search .header__search__form form input:focus{border-bottom:2px solid var(--primary-dark);outline:none}.error404 form.search-form button,.header__search .header__search__form form button{color:var(--primary)}.error404 form.search-form button:focus,.header__search .header__search__form form button:focus{color:var(--primary-dark);outline:solid 2px var(--primary-dark)}}.home .toc{margin-bottom:4rem}.toc,.toc ol{font-family:Karla,sans-serif;list-style-type:none;padding:0}.toc li+li,.toc li ol li:first-child{margin-top:.5rem}.toc__front-matter+.toc__part,.toc__part+.toc__back-matter,.toc__part+.toc__part{margin-top:1rem}.toc button{background:transparent;border:.125rem solid transparent;border-radius:0;float:right;height:2.25rem;padding:0;width:2.25rem}.toc__title__container button{background:#fafafa;text-align:center}.toc__part>.toc__title__container button{background:#eee}.toc .icon--private{height:1rem;margin:.1875rem;vertical-align:text-bottom;width:1rem}.toc [class*="--empty"]>.toc__title__container,.toc [class*="--full"]>.toc__title__container>p>span,.toc [class*="--full"]>.toc__title__container>span{background:#fafafa;display:inline-block;min-height:2.25rem;overflow-wrap:break-word;padding:.25rem .5rem}.toc__subsections li{background:#fcfcfc;display:block;min-height:2.25rem;padding:.25rem .5rem}.toc [class*="--full"]>.toc__title__container>p>span,.toc [class*="--full"]>.toc__title__container>span{padding-left:1.68rem;text-indent:-1.18rem;width:calc(100% - 2.75rem)}.toc [class*="--full"] .toc__subsections{font-size:1rem;margin-left:1.25rem}.toc [class*="--empty"]>.toc__title__container{padding-left:1.68rem;text-indent:-1.18rem;width:100%}.toc__title__container .toc__title{margin-bottom:0}.toc__title__container .toc__author{margin:0 0 0 .75rem;text-indent:0}.toc__part>.toc__title__container{font-weight:600}.toc .toc__part--empty>.toc__title__container,.toc .toc__part--full>.toc__title__container span{background:#eee}.dropdown .toc button:focus,.dropdown .toc button:hover,.toc button:focus,.toc button:hover{border-color:var(--primary);box-shadow:none}.dropdown .toc button:active,.toc button:active{border-color:var(--primary-dark)}.toc button svg{height:1rem;margin-top:.5rem;width:1rem}.toc>li{padding-left:2rem;padding-right:2rem}.toc__toggle{margin:2rem 0 4rem;text-align:center}.toc__toggle[aria-expanded=false] #hide{display:none}.toc__toggle[aria-expanded=false] #show,.toc__toggle[aria-expanded=true] #hide{display:inline-block}.toc__toggle[aria-expanded=true] #show{display:none}.block-reading-toc{background:var(--body-bg);color:var(--body-text);margin-top:.25rem;padding-top:1rem;width:100%}.block-reading-toc .toc>li{padding-left:1rem;padding-right:1rem}@media screen and (min-width:60rem){.block-reading-toc{box-shadow:2px 3px 2px 1px hsla(0,0%,53%,.09);z-index:100}}.toc__selected .toc__title__container a{text-decoration:underline}.home #content{width:100%}.book-header,.home #content .block{margin-left:auto;margin-right:auto;max-width:60rem;width:100%}.book-header{--primary:var(--header-color);--primary-dark:var(--header-color);--accent:var(--header-color);--header-color:var(--body-bg);--header-bg:var(--body-text);background-color:var(--header-bg);color:var(--header-color);margin-bottom:4rem;padding:1.5rem 1rem 7.5rem}@media screen and (min-width:60rem){.book-header{padding:3.5rem 1rem 7.5rem}}#content .block.block-meta,.book-header{max-width:100%}.book-header__inner{display:flex;flex-direction:column;margin:0 auto;max-width:60rem;min-height:35rem;position:relative}@media screen and (min-width:768px){.book-header__inner>*{max-width:55%}}.book-header__title{font-size:2.25rem;text-align:left;text-transform:none}.book-header__title:before{margin-bottom:1.125rem;margin-left:0}.book-header__subtitle{font-family:Spectral,serif;font-size:1.5rem}.book-header__author{font-family:Karla,sans-serif;margin-bottom:1rem}@media screen and (min-width:60rem){.book-header__author{margin-bottom:2.25rem}}.book-header__cover{align-self:center;margin-bottom:1.5rem}@media screen and (min-width:768px){.book-header__cover{align-self:unset;position:absolute;right:0;top:0}.book-header__inner>.book-header__cover{max-width:38%}}.book-header__cover__image img{margin-bottom:1.5rem;max-height:500px;max-width:100%;-o-object-fit:contain;object-fit:contain}.book-header__cover__downloads{margin-bottom:1.5rem;padding-bottom:.5rem}.book-header__cover__downloads button:hover{text-decoration:underline}.book-header__cover__downloads button:focus{outline:auto;text-decoration:underline}.book-header__cover__downloads ul{list-style:none;margin:0;padding:0}.book-header__cover__downloads li{align-items:center;background-color:var(--header-color);display:flex;font-family:Karla,sans-serif;font-size:1rem;font-weight:700;height:3rem;padding:0 1rem}.book-header__cover__downloads li:focus,.book-header__cover__downloads li:hover{background-color:#fafdff}.book-header__cover__downloads a{color:var(--cover-header-bg)}.book-header__share{align-items:center;align-self:center;display:flex;margin-top:1rem}.book-header__share svg{height:2.25rem;margin:0 .5rem;width:1.875rem}@media screen and (min-width:768px) and (max-width:60em){.book-header__share{display:none}}@media screen and (min-width:768px){.book-header__share{align-items:flex-start;align-self:unset}.book-header__share>:first-child{margin-left:0}}.book-header__share a{cursor:pointer}.book-header__share.book-header__cover__share{display:none}.book-header__share.book-header__cover__share svg{height:2.25rem;margin:0 .5rem;width:1.875rem}@media screen and (min-width:768px) and (max-width:60em){.book-header__share.book-header__cover__share{display:block}}.book-header__description{font-family:Spectral,serif;font-size:1.125rem;line-height:1.5;margin-bottom:1.875rem}.book-header__description a{text-decoration:underline}.book-header__license{align-items:center;align-self:center;display:flex;flex-wrap:wrap;justify-content:space-around;margin-bottom:2.375rem}@media screen and (min-width:768px){.book-header__license{align-self:unset;justify-content:flex-start}}.book-header__license__text{margin-bottom:.5rem;margin-top:.5rem;text-align:center}@media screen and (min-width:768px){.book-header__license__text{text-align:left}}.book-header__license__icons{align-items:center;display:flex}.book-header__license__icons .icon{height:2.25rem;margin:0 .5rem;width:1.875rem}.book-header__license__icons>.icon:first-child{margin-left:0}.book-header__license__icons>.icon:last-child{margin-right:1rem}.book-header__cta{align-items:center;align-self:center;display:flex;flex-flow:column wrap}@media screen and (min-width:768px){.book-header__cta{align-items:flex-start;align-self:unset;flex-direction:row}}.book-header__cta .call-to-action{background-color:var(--header-bg);border-color:var(--header-color);color:var(--header-color);margin-bottom:.875rem;min-width:15rem}@media screen and (min-width:768px){.book-header__cta .call-to-action{margin-right:1.375rem}}.book-header__cta .call-to-action:focus,.book-header__cta .call-to-action:hover{background-color:var(--header-color);color:var(--header-bg)}.license-text{font-family:Karla,sans-serif;font-weight:700}.block-info{font-size:1.125rem;margin-bottom:6rem;padding-left:0;padding-right:0}@media screen and (min-width:60rem){.block-info{padding-left:1rem;padding-right:1rem}}.block-info__inner{margin:0 auto;max-width:1330px;padding-bottom:4rem}@media screen and (min-width:60rem){.block-info__inner{display:flex;padding-bottom:6rem}.block-info__inner__content{flex:1 1 0}.block-info__inner__content:last-child{margin-left:7rem}.block-info__inner__content:empty{display:none}.block-info__inner__content:empty+.block-info__inner__content{margin-left:0}}.block-info__title{margin-bottom:1.5rem}@media screen and (min-width:768px){.block-info__title{margin-bottom:3rem}}.block-info__description{font-family:Spectral,serif;font-size:1.125rem}.block-info__subsection{padding-left:1rem;padding-right:1rem}@media screen and (min-width:60rem){.block-info__subsection{padding-left:0;padding-right:0}}.block-info__subject{margin-bottom:0}.block-info__contributing-authors,.block-info__lead-author,.block-info__license,.block-info__subject{border-bottom:1px solid #ececec;margin-bottom:1rem;padding-bottom:1rem}@media screen and (max-width:767px){.block-info__contributing-authors:last-child,.block-info__lead-author:last-child,.block-info__license:last-child,.block-info__subject:last-child{border-bottom:0}}.block-info__lead-author__authors{align-items:center;display:flex;justify-content:flex-start}.block-info__lead-author__photo{border:3px solid var(--accent);border-radius:58px;height:116px;margin-right:.625rem;overflow:hidden;width:116px}.block-info__lead-author__photo img{height:auto;width:100%}.block-info__lead-author__name{margin-right:2rem}.block-meta{box-shadow:0 2px 4px 0 rgba(0,0,0,.15);font-size:1.125rem}@media screen and (min-width:60rem){.block-meta{background-color:var(--body-bg-alt);box-shadow:none;padding-left:2rem;padding-right:2rem;padding-top:7rem}.block-meta.section{padding-bottom:6rem}}.block-meta__content-box{background-color:var(--body-bg);margin:0 auto;max-width:1200px;padding-left:2rem;padding-right:2rem}@media screen and (min-width:60rem){.block-meta__content-box{box-shadow:0 2px 4px 0 rgba(0,0,0,.15);padding:4rem 8rem}}.block-meta__title{margin-bottom:1.5rem}@media screen and (min-width:768px){.block-meta__title{margin-bottom:3rem}}.block-meta__inner{padding-bottom:2rem}@media screen and (min-width:768px){.block-meta__inner{padding-bottom:4rem}}@media screen and (min-width:60rem){.block-meta__inner{padding-bottom:0}}.block-meta__list{-moz-column-rule:1px solid #b7b7b7;column-rule:1px solid #b7b7b7}@media screen and (min-width:768px){.block-meta__list{-moz-column-count:3;column-count:3;-moz-column-gap:3rem;column-gap:3rem}}.block-meta__subsection{-moz-column-break-inside:avoid;break-inside:avoid;margin-bottom:2.5rem;overflow:hidden;page-break-inside:avoid}.block-meta__subtitle{color:var(--primary);font-family:Karla,sans-serif;font-size:1.125rem;margin-bottom:.5rem}#content .license-attribution img{height:2em;width:auto}.footer--page{padding-bottom:1rem;padding-top:1rem}.footer.footer--reading{padding-bottom:12rem;padding-top:1rem}@media screen and (min-width:60rem){.footer.footer--reading{padding-bottom:4rem}}@media screen and (min-width:1330px){.footer.footer--reading{padding-bottom:4rem}}body:not(.home) .header{padding-left:0;padding-right:0}body:not(.home) .header__inside{padding-left:1rem;padding-right:1rem}.reading-header{--header-bg:var(--body-text);--header-color:var(--body-bg);background-color:var(--header-bg);color:var(--header-color);font-family:Karla,sans-serif;margin-top:3rem}.reading-header .reading-header__end-container a,.reading-header .reading-header__title a{color:var(--header-color);text-decoration:none}.reading-header .reading-header__end-container a:focus,.reading-header .reading-header__end-container a:hover,.reading-header .reading-header__title a:focus,.reading-header .reading-header__title a:hover{color:var(--header-color);text-decoration:underline}.reading-header__inside{display:flex;flex-direction:column}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__inside{flex-direction:row;justify-content:space-between}}.reading-header__end-container,.reading-header__title,.reading-header__toc{align-items:center;display:flex;min-height:5rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container,body:not(.has-annotator-pane) .reading-header__title,body:not(.has-annotator-pane) .reading-header__toc{height:5rem}}.reading-header__end-container,.reading-header__toc{border-top:3px solid var(--header-color);font-size:1rem;order:1;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container,body:not(.has-annotator-pane) .reading-header__toc{border-top:0;flex:1 0 17.5rem;order:0;width:calc(50vw - 400px)}}.reading-header__toc{background:var(--header-bg);display:flex;flex-direction:column;justify-content:center}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__toc{align-items:flex-end;justify-content:flex-start}}.reading-header__toc .reading-header__toc__title{font-size:1rem;font-weight:500;height:5rem;margin-bottom:0;padding-left:.25rem;padding-right:.25rem;text-transform:uppercase;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__toc .reading-header__toc__title{width:100%}body:not(.has-annotator-pane) .reading-header__toc .reading-header__toc__title button{padding-left:2rem;padding-right:2rem}}.reading-header__toc .reading-header__toc__title button{border-bottom:0;font-size:1rem;font-weight:500;height:5rem;padding-bottom:0;padding-left:2.25rem;padding-right:2.25rem;text-transform:uppercase}.reading-header__toc .reading-header__toc__title button:active,.reading-header__toc .reading-header__toc__title button:focus,.reading-header__toc .reading-header__toc__title button:hover{color:var(--header-color);text-decoration:underline}@media screen and (min-width:768px){.reading-header__toc .reading-header__toc__title button{font-size:1.125rem}.reading-header__toc .reading-header__toc__title button .arrow{margin-top:.65rem}}.reading-header__title{background-color:var(--footer-bg);border-bottom:2px solid var(--body-bg);border-top:2px solid var(--body-bg);font-size:1.25rem;justify-content:center;margin-bottom:0;text-align:center;text-transform:uppercase;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__title{flex:1 1 var(--reading-width,40em);max-width:var(--reading-width,40em)}}.reading-header__end-container{display:none;padding-left:2.25rem;padding-right:2.25rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container{display:flex;justify-content:flex-end;padding-left:2rem;padding-right:2rem}body:not(.has-annotator-pane) .reading-header__end-container a{font-size:1.125rem;text-transform:uppercase}}.a11y-toolbar{z-index:9990}@media screen and (max-width:59.975rem){.a11y-toolbar{position:absolute}}body{display:flex;flex-direction:column;min-height:100vh}body #page{display:flex;flex:1;flex-direction:column}body #content{flex-grow:1}.page .hentry{margin-bottom:4rem;padding:0 1rem}@media screen and (min-width:60rem){.page .hentry{padding:0}}#content h2.page-title,body.page:not(.home) #content h2,body:not(.home) #content h2.denied-title{font-family:Karla,sans-serif;font-size:1.5rem;margin:2rem 0 1rem;text-align:center}#content h2.page-title:before,body.page:not(.home) #content h2:before,body:not(.home) #content h2.denied-title:before{display:none}#content p.h5p-count{font-family:Karla,sans-serif;margin-bottom:1.5rem;text-align:center}#h5p-show-hide{margin-left:.3rem}#h5p-listing-table{border-bottom:1px solid #eee}#content .h5p-pagination{font-family:Karla,sans-serif;margin:0 auto;padding-top:1rem;text-align:center}#content .h5p-pagination .page-numbers{font-size:1.2rem;padding:.3rem}.blog #content h3{text-indent:0}#content .denied-text p{font-family:Spectral,serif;font-size:1.125rem}#content .denied-text p a{color:var(--primary)}#content .denied-text p a:focus,#content .denied-text p a:hover{color:var(--primary-dark)}.posts-navigation{margin:2rem 0}.nav-next,.nav-previous{margin-bottom:2rem}.nav-next a,.nav-previous a{align-items:center;display:flex;font-family:Karla,sans-serif}.nav-next svg,.nav-previous svg{height:1rem;width:1rem}.nav-previous{float:left}.nav-next{float:right}.nav-previous svg{margin-right:.5rem}.nav-next svg{margin-left:.5rem}.private-block{margin-bottom:4rem}.footer.footer--home{padding-top:1rem}.buy-book li+li{margin-top:1rem}.bookstore-logo-link{margin-right:.5rem}h1.reading-header__title:before{display:none}.error404,.search-results,.single-back-matter,.single-chapter,.single-front-matter,.single-part{display:flex;flex-direction:column;min-height:100vh}.error404 #page,.search-results #page,.single-back-matter #page,.single-chapter #page,.single-front-matter #page,.single-part #page{display:flex;flex:1;flex-direction:column;min-height:100vh}.error404 #main,.search-results #main,.single-back-matter #main,.single-chapter #main,.single-front-matter #main,.single-part #main{display:flex;flex-direction:column;flex-grow:1}.error404 #content,.search-results #content,.single-back-matter #content,.single-chapter #content,.single-front-matter #content,.single-part #content{flex-grow:1;font-size:1.125rem;margin-bottom:2rem;padding:0 1rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .error404 #content,body:not(.has-annotator-pane) .search-results #content,body:not(.has-annotator-pane) .single-back-matter #content,body:not(.has-annotator-pane) .single-chapter #content,body:not(.has-annotator-pane) .single-front-matter #content,body:not(.has-annotator-pane) .single-part #content{padding:0}}.error404 #content h1:before,.error404 #content h2:before,.search-results #content h1:before,.search-results #content h2:before,.single-back-matter #content h1:before,.single-back-matter #content h2:before,.single-chapter #content h1:before,.single-chapter #content h2:before,.single-front-matter #content h1:before,.single-front-matter #content h2:before,.single-part #content h1:before,.single-part #content h2:before{display:none}.back-matter div[hidden]+h1:not(:first-of-type),.chapter div[hidden]+h1:not(:first-of-type),.front-matter div[hidden]+h1:not(:first-of-type),.part div[hidden]+h1:not(:first-of-type){margin-top:0}.back-matter h1[data-collapsed=true],.chapter h1[data-collapsed=true],.front-matter h1[data-collapsed=true],.part h1[data-collapsed=true]{margin-bottom:0}.back-matter .post-password-form,.chapter .post-password-form,.front-matter .post-password-form,.part .post-password-form{margin-top:1rem}.back-matter .post-password-form p+p,.chapter .post-password-form p+p,.front-matter .post-password-form p+p,.part .post-password-form p+p{margin-top:1rem;text-indent:0}.back-matter .post-password-form label,.chapter .post-password-form label,.front-matter .post-password-form label,.part .post-password-form label{width:100%}.back-matter .post-password-form label:after,.chapter .post-password-form label:after,.front-matter .post-password-form label:after,.part .post-password-form label:after{clear:both;content:"";display:block;width:100%}.back-matter .post-password-form [type=submit],.chapter .post-password-form [type=submit],.front-matter .post-password-form [type=submit],.part .post-password-form [type=submit]{margin-top:1rem}.part-title{text-align:right}#content .entry-content a.call-to-action,.edit-link .call-to-action{color:var(--primary)}#content .entry-content a.call-to-action:focus,#content .entry-content a.call-to-action:hover,.edit-link .call-to-action:focus,.edit-link .call-to-action:hover{color:var(--primary-dark)}.nav-reading{background-color:var(--primary);bottom:0;display:block;left:0;position:fixed;width:100%}@media screen and (min-width:60rem){.nav-reading{display:flex;flex-direction:row;z-index:1}}.nav-reading__next,.nav-reading__previous{color:var(--primary-fg);min-height:2.3125rem}@media screen and (min-width:60rem){.nav-reading__next,.nav-reading__previous{float:left;width:50%}}.nav-reading__next{text-align:right}.nav-reading__next a,.nav-reading__previous a{border:1px solid transparent;color:var(--primary-fg);display:block;font-family:Karla,sans-serif;font-size:.875rem;height:100%;padding:.5rem 1rem}.nav-reading__next a:focus,.nav-reading__previous a:focus{border:1px solid var(--primary-fg);outline:none}.nav-reading__next a:hover,.nav-reading__previous a:hover{background:var(--primary-dark)}.nav-reading__previous a{border-bottom-color:var(--primary-dark)}@media screen and (min-width:60rem){.nav-reading__previous a{border-bottom-color:transparent;border-right-color:var(--primary-dark)}}.nav-reading__next a{border-top-color:var(--primary-dark)}@media screen and (min-width:60rem){.nav-reading__next a{border-left-color:var(--primary-dark);border-top-color:transparent}}.nav-reading__next a svg,.nav-reading__previous a svg{fill:currentColor;height:1em;vertical-align:text-bottom;width:1em}.nav-reading__previous a svg{margin-right:.5em}.nav-reading__next a svg{margin-left:.5em}.nav-reading__next,.nav-reading__previous,.nav-reading__up{z-index:11}.nav-reading__up{align-items:center;background-color:var(--primary);border-radius:50%;color:var(--primary-fg);display:flex;flex-direction:column;height:2.5rem;justify-content:center;left:50%;opacity:0;padding:0;position:absolute;top:-3rem;transform:translate(-50%);width:2.5rem}.nav-reading__up:focus{background-color:var(--primary);border:1px solid var(--primary-fg)}.nav-reading__up:hover{background-color:var(--primary-dark);text-decoration:none}.nav-reading__up:active,.nav-reading__up:hover{color:var(--primary-fg)}@media screen and (max-width:59.975rem){.nav-reading--multipage .nav-reading__up{top:-6rem}}.nav-reading__up .nav-reading__up__text{display:none;font-family:Spectral,serif;font-size:.875rem}.nav-reading__up svg{height:1em;margin:0;width:1em}.nav-reading--page{margin-top:2rem}.nav-reading--page__next,.nav-reading--page__previous{font-family:Karla,sans-serif;font-size:1rem}.nav-reading--page__next a,.nav-reading--page__previous a{color:var(--body-color)}.nav-reading--page__next a:hover,.nav-reading--page__previous a:hover{color:var(--primary-dark);text-decoration:underline}.nav-reading--page__next a svg,.nav-reading--page__previous a svg{fill:currentColor;height:1em;vertical-align:text-bottom;width:1em}.nav-reading--page__previous a svg{margin-right:.5em}.nav-reading--page__next a svg{margin-left:.5em}.button--text{all:inherit;border:0;display:flex;justify-content:space-between;padding:.5em 0;width:100%}.button--text:active,.button--text:hover{background:transparent;border:0;box-shadow:none;color:inherit}.button--text:focus{background:transparent;color:inherit}.button--text:focus svg{outline:2px solid}.button--text span{display:block;max-width:calc(100% - 1.5em)}.button--text span span{display:inline}.button--text svg{height:1em;margin-left:.5em}.no-navigation .footer,.no-navigation .header,.no-navigation .nav-reading,[aria-expanded=true] .vert{display:none}.no-navigation.single #content{box-sizing:border-box;max-width:var(--reading-width);width:100%}.mejs-container,.mejs-embed{z-index:0}.block-reading-meta__subsection h2+p{margin-top:0}.block-reading-meta__subsection a{text-decoration:underline}.search-results{padding-left:0}.search-results h2:before{display:none}
+*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0);font-family:sans-serif;line-height:1.15}@-ms-viewport{width:device-width}article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}body{background-color:var(--body-bg);color:var(--body-text);font-family:Spectral,serif;font-size:1rem;font-weight:400;line-height:1.5;margin:0;text-align:left}[tabindex="-1"]:focus{outline:none!important}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6,p{margin-top:0}p{margin-bottom:1rem}abbr[data-original-title],abbr[title]{border-bottom:0;cursor:help;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit}address,dl,ol,ul{margin-bottom:1rem}dl,ol,ul{margin-top:0}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:600}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{-webkit-text-decoration-skip:objects;background-color:transparent;color:var(--primary);text-decoration:none}a:focus,a:hover{color:var(--primary-dark);text-decoration:underline}code,kbd,pre,samp{font-family:monospace,monospace;font-size:1em}pre{-ms-overflow-style:scrollbar;margin-bottom:1rem;margin-top:0;overflow:auto}figure{margin:0 0 1rem}img{border-style:none;vertical-align:middle}svg:not(:root){overflow:hidden}[role=button],a,area,button,input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{caption-side:bottom;color:#888;padding-bottom:.75rem;padding-top:.75rem;text-align:left}th{text-align:inherit}label{display:inline-block;margin-bottom:.5rem}button{border-radius:0}button:focus{outline:1px dotted;outline:5px auto -webkit-focus-ring-color}button,input,optgroup,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=submit],button,html [type=button]{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{border:0;margin:0;min-width:0;padding:0}legend{color:inherit;display:block;font-size:1.5rem;line-height:inherit;margin-bottom:.5rem;max-width:100%;padding:0;white-space:normal;width:100%}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:none;outline-offset:-2px}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}:root{--primary:#b01109;--primary-dark:#7f0c07;--primary-alpha:rgba(176,17,9,0.25);--primary-fg:#fff;--accent:#015d75;--accent-alpha:rgba(1,93,117,0.25);--accent-dark:#013542;--accent-fg:#fff;--success:#070;--error:#d00;--warning:#e90;--body-bg:#fff;--body-bg-alt:#f6f6f6;--body-text:#222;--header-bg:#fff;--header-text:#222;--footer-bg:#444;--footer-text:#fff}.content-max-width{margin:0 auto;max-width:1330px}img{max-width:100%}.clearfix:after{clear:both;content:"";display:block}.focusable:focus{outline:none}.has-focus{background:#ff0}.a11y-toolbar{margin:0 auto;padding:0 1rem;position:fixed;text-align:right;top:0;width:100vw;z-index:99999}.a11y-fontsize{background-color:var(--primary-fg);border-color:var(--primary);border-top:0;border-top-left-radius:0;border-top-right-radius:0;color:var(--primary);font-size:1rem;font-weight:400;line-height:1.5;margin:0;padding:.25rem .875rem;text-align:center;text-transform:none}.a11y-fontsize.focus,.a11y-fontsize:focus,.a11y-fontsize:hover{background-color:var(--primary-fg);border-color:var(--primary-dark);color:var(--primary-dark)}.a11y-fontsize.focus,.a11y-fontsize:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.a11y-fontsize.active,.a11y-fontsize:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.fontsize{font-size:22px}.screen-reader-text{clip:rect(1px,1px,1px,1px);word-wrap:normal!important;border:0;-webkit-clip-path:inset(50%);clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute!important;width:1px}.screen-reader-text:focus{clip:auto!important;background-color:var(--body-bg);border-radius:3px;box-shadow:0 0 2px 2px rgba(0,0,0,.6);-webkit-clip-path:none;clip-path:none;color:var(--body-text);display:block;font-size:.875rem;font-weight:700;height:auto;left:5px;line-height:normal;padding:15px 23px 14px;text-decoration:none;top:5px;width:auto;z-index:100000}.button,a.call-to-action,button,input[type=submit]{border-radius:3px;border-style:solid;border-width:2px;display:inline-block;font-family:Karla,sans-serif;font-weight:600;line-height:1.5;padding:.875rem 3.25rem;text-align:center;text-decoration:none;text-transform:uppercase;vertical-align:middle}.button.focus,.button:focus,.button:hover,a.call-to-action.focus,a.call-to-action:focus,a.call-to-action:hover,button.focus,button:focus,button:hover,input[type=submit].focus,input[type=submit]:focus,input[type=submit]:hover{text-decoration:none}.button.focus,.button:focus,a.call-to-action.focus,a.call-to-action:focus,button.focus,button:focus,input[type=submit].focus,input[type=submit]:focus{outline:0}.button.disabled,.button:disabled,a.call-to-action.disabled,a.call-to-action:disabled,button.disabled,button:disabled,input[type=submit].disabled,input[type=submit]:disabled{box-shadow:none;opacity:.65}.button.active,.button:active,a.call-to-action.active,a.call-to-action:active,button.active,button:active,input[type=submit].active,input[type=submit]:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button,button,input[type=submit]{background-color:var(--primary);border-color:var(--primary);color:var(--primary-fg)}.button.focus,.button:focus,.button:hover,button.focus,button:focus,button:hover,input[type=submit].focus,input[type=submit]:focus,input[type=submit]:hover{background-color:var(--primary-dark);border-color:var(--primary-dark);color:var(--primary-fg)}.button.focus,.button:focus,button.focus,button:focus,input[type=submit].focus,input[type=submit]:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.button.button--accent,button.button--accent,input[type=submit].button--accent{background-color:var(--accent);border-color:var(--accent);color:var(--accent-fg)}.button.button--accent.focus,.button.button--accent:focus,.button.button--accent:hover,button.button--accent.focus,button.button--accent:focus,button.button--accent:hover,input[type=submit].button--accent.focus,input[type=submit].button--accent:focus,input[type=submit].button--accent:hover{background-color:var(--accent-dark);border-color:var(--accent-dark);color:var(--accent-fg)}.button.button--accent.focus,.button.button--accent:focus,button.button--accent.focus,button.button--accent:focus,input[type=submit].button--accent.focus,input[type=submit].button--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.button.button--accent.active,.button.button--accent:active,button.button--accent.active,button.button--accent:active,input[type=submit].button--accent.active,input[type=submit].button--accent:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.call-to-action{background-color:var(--primary-fg);border-color:var(--primary);color:var(--primary)}.call-to-action.focus,.call-to-action:focus,.call-to-action:hover{background-color:var(--primary-fg);border-color:var(--primary-dark);color:var(--primary-dark)}.call-to-action.focus,.call-to-action:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.call-to-action.call-to-action--accent{background-color:var(--accent-fg);border-color:var(--accent);color:var(--accent)}.call-to-action.call-to-action--accent.focus,.call-to-action.call-to-action--accent:focus,.call-to-action.call-to-action--accent:hover{background-color:var(--accent-fg);border-color:var(--accent-dark);color:var(--accent-dark)}.call-to-action.call-to-action--accent.focus,.call-to-action.call-to-action--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.call-to-action.call-to-action--accent.active,.call-to-action.call-to-action--accent:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}[class$="--accent"] .call-to-action{background-color:var(--accent);border-color:var(--accent-fg);color:var(--accent-fg)}[class$="--accent"] .call-to-action.focus,[class$="--accent"] .call-to-action:focus,[class$="--accent"] .call-to-action:hover{background-color:var(--accent-dark);border-color:var(--accent-fg);color:var(--accent-fg)}[class$="--accent"] .call-to-action.focus,[class$="--accent"] .call-to-action:focus{box-shadow:0 0 0 2px var(--accent-dark),0 0 0 4px var(--accent-fg)}[class$="--accent"] .call-to-action.active,[class$="--accent"] .call-to-action:active{background-image:none;box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button--circle{align-items:center;background-color:var(--primary);border:2px solid var(--primary);border-radius:50%;color:var(--primary-fg);display:flex;height:3.75rem;justify-content:center;width:3.75rem}.button--circle.focus,.button--circle:focus,.button--circle:hover{background-color:var(--primary-dark);border-color:var(--primary-dark);color:var(--primary-fg);text-decoration:none}.button--circle.focus,.button--circle:focus{box-shadow:0 0 0 2px var(--primary-fg),0 0 0 4px var(--primary-dark)}.button--circle.active,.button--circle:active{background-image:none;box-shadow:0 0 0 3px var(--primary-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.button--circle--accent{background-color:var(--accent);color:var(--accent-fg)}.button--circle--accent.focus,.button--circle--accent:focus,.button--circle--accent:hover{background-color:var(--accent-dark);border-color:var(--accent-dark);color:var(--accent-fg)}.button--circle--accent.focus,.button--circle--accent:focus{box-shadow:0 0 0 2px var(--accent-fg),0 0 0 4px var(--accent-dark)}.button--circle--accent.active,.button--circle--accent:active{box-shadow:0 0 0 3px var(--accent-alpha),inset 0 3px 5px rgba(0,0,0,.125)}.dropdown>p{margin-bottom:0}.dropdown button{background:transparent;border:0;border-bottom:3px solid var(--header-color);border-radius:0;color:var(--header-color);padding:0 0 .5rem;text-align:left;text-transform:none;width:100%}.dropdown button:focus,.dropdown button:hover{border-bottom-color:var(--primary-dark,#7f0c07);color:var(--primary-dark,#7f0c07)}.dropdown button:active{box-shadow:unset}.dropdown button .arrow{display:block;float:right;margin-top:.5rem}.dropdown [aria-expanded=true] .arrow{transform:rotate(180deg)}.dropdown-menu{background-clip:padding-box;background-color:var(--body-bg);border:2px solid rgba(0,0,0,.15);border-radius:3px;box-shadow:0 .5rem 1rem rgba(0,0,0,.175);color:#222;display:none;float:left;font-size:1rem;left:0;list-style:none;margin:.125rem 0 0;min-width:10rem;padding:.5rem 0;position:absolute;text-align:left;top:100%;z-index:1000}.dropdown-menu.dropdown-menu-block{width:100%}.dropup .dropdown-menu{margin-bottom:.125rem;margin-top:0}.dropup .dropdown-toggle:after{border-bottom:.3em solid;border-top:0}.dropdown-item{background:var(--body-bg-alt);border:0;clear:both;color:#222;display:block;font-weight:400;padding:.25rem 1.5rem;text-align:inherit;white-space:nowrap;width:100%}.dropdown-item:focus,.dropdown-item:hover{background-color:var(--accent);color:#151515;text-decoration:none}.dropdown-item.active,.dropdown-item:active{background-color:var(--accent);color:var(--primary);text-decoration:none}.dropdown-item.disabled,.dropdown-item:disabled{background-color:transparent;color:#888}.show>a{outline:0}.dropdown-menu.show{display:block}.dropdown-header{color:#888;display:block;font-size:.875rem;margin-bottom:0;padding:.5rem 1.5rem;white-space:nowrap}.alignleft{float:left;margin-right:1.5em}.alignright{float:right;margin-left:1.5em}.aligncenter{clear:both}.block-reading-meta{background-color:var(--body-bg-alt);font-family:Karla,sans-serif;padding:2rem 1rem 4rem}@media screen and (min-width:768px){.block-reading-meta{padding:2rem 1rem 2.25rem}}.block-reading-meta .license-attribution{font-size:1rem}.block-reading-meta .license-attribution img{height:2rem;margin-bottom:1rem;width:auto}.block-reading-meta__inner{display:flex;flex-wrap:wrap;margin:0 auto;max-width:1200px}.block-reading-meta__subsection{flex:1;min-width:300px;padding-right:2rem}.block-reading-meta__subtitle{color:var(--primary);font-size:1.25rem;margin-bottom:1rem;text-align:left}.block-reading-meta__subtitle:before{display:none}.block-reading-meta__share{align-items:center;display:flex}.block-reading-meta__share>:first-child{margin-left:0}.block-reading-meta__share svg{height:2rem;width:3rem}html{-webkit-font-smoothing:antialiased}main *+p{margin-top:1.5em}h1,h2,h3,h4,h5,h6{font-family:Karla,sans-serif;font-weight:700;line-height:1.5;margin-bottom:.5rem}h1 a,h1 a:active,h1 a:hover,h1 a:visited,h2 a,h2 a:active,h2 a:hover,h2 a:visited,h3 a,h3 a:active,h3 a:hover,h3 a:visited,h4 a,h4 a:active,h4 a:hover,h4 a:visited,h5 a,h5 a:active,h5 a:hover,h5 a:visited,h6 a,h6 a:active,h6 a:hover,h6 a:visited{color:inherit}.home h1,.home h2,.home h3,.home h4,.home h5,.home h6{color:var(--primary)}h1{font-size:2.25rem;text-align:center;text-transform:uppercase}h1:before{background:var(--accent);content:"";display:block;height:.3125rem;margin:.5rem auto 1rem;width:2.8125rem}@media screen and (min-width:60rem){h1:before{margin-bottom:2rem;width:4.6875rem}}@media screen and (min-width:768px){h1{font-size:3rem}}h2{font-size:1.875rem;font-weight:600;margin-bottom:2rem;text-align:center;text-transform:uppercase}h2:before{background:var(--accent);content:"";display:block;height:.3125rem;margin:.5rem auto 1rem;width:2.8125rem}@media screen and (min-width:60rem){h2:before{margin-bottom:2rem;width:4.6875rem}}@media screen and (min-width:768px){h2{font-size:2.25rem}}h3{font-size:2.25rem}h4{font-size:1.875rem}h5{font-size:1.5rem}h6{font-size:1.25rem}ol,p,ul{font-size:1.125rem;line-height:1.5}.page-section{background:var(--body-bg);padding:4rem 1rem;text-align:center;width:100%}.page-section ol,.page-section ul{list-style-position:inside;padding-left:0}.page-section--accent{background:var(--accent)}.page-section--accent,.page-section--accent h2{color:var(--accent-fg)}.page-section--accent h2:before{background:var(--accent-fg)}.page-section--bordered{border:4px solid var(--accent);margin:5rem auto 0;width:calc(100% - 2rem)}.page-section--borderless{box-shadow:none}.block__subtitle{font-size:1.5rem;margin-bottom:1rem;text-transform:uppercase}@media screen and (min-width:768px){.block__subtitle{margin-bottom:1.5rem}}.block-toggle__cta{position:relative;text-align:center}@media screen and (min-width:60rem){.block-toggle__cta{display:none}}.block-toggle__cta__blurb{font-size:.875rem;margin-bottom:0;padding-bottom:2.5rem}.block-toggle__cta__button{bottom:0;color:var(--primary-fg);cursor:pointer;font-size:1.5rem;left:50%;margin:0;position:absolute;transform:translate(-50%,50%);z-index:10}.block-toggle__cta__button svg{height:2rem;width:1.5rem}.block-toggle__cta__button.--visible svg{transform:rotate(180deg)}.block.block-toggle{padding-bottom:0}@media screen and (max-width:59.975rem){.block.block-toggle.block-toggle--visible .block-toggle__cta__blurb,.block.block-toggle:not(.block-toggle--visible) .block-toggle__content{display:none}}.block.block-toggle.block-meta{padding-bottom:6rem}@media screen and (min-width:60rem){.has-sections .entry-content{display:flex;flex-wrap:wrap;justify-content:space-around;max-width:90rem;width:100%}.page-section{box-shadow:-3px 5px 4px 2px hsla(0,0%,53%,.09);margin:4rem auto;max-width:50rem;padding:4rem 5.625rem;width:100%}.page-section:first-of-type,.page-section:nth-of-type(2){width:calc(50% - 4rem)}.page-section--bordered,.page-section:only-of-type{max-width:50rem;width:100%}.page-section--bordered{box-shadow:none;margin:4rem auto}.page-section--bordered:first-of-type,.page-section--bordered:nth-of-type(2){width:calc(50% - 4rem)}.page-section--bordered:only-of-type{max-width:50rem;width:100%}}.home h1{text-transform:none}.home h1:before{display:none}.page:not(.has-sections) article{background:var(--body-bg);padding:4rem 1rem;text-align:left;width:100%}@media screen and (min-width:60rem){.page:not(.has-sections) article{box-shadow:-3px 5px 4px 2px hsla(0,0%,53%,.09);margin:-80% auto 4rem;max-width:50rem;padding:4rem 5.625rem;width:100%}}.page:not(.has-sections) .entry-header{margin-bottom:2rem}#content{background-color:var(--body-bg);margin:0 auto;position:relative;width:100%}@media screen and (min-width:60rem){#content{width:var(--reading-width,40em)}}#content .wp-caption,#content .wp-nocaption,#content img{height:auto;max-width:100%}.single #content{margin-bottom:0;min-height:350px}.edit-link{margin-top:5rem}@media print{body{background:none}a{color:#000}#wrap{clear:both;display:block;float:none;margin:0 auto;position:relative}#header{border-bottom:2pt solid #000;padding-bottom:18pt}.entry-content{font-size:14pt;line-height:1.6em}.entry-title{font-size:21pt}#branding img,#comments,#respond,#searchform,.comment-edit-link,.edit-link,.nav,.navigation,.page-link,.share-wrap-single,.sidebar,.widget-area{display:none}#container,#header,.footer{margin:0;width:100%}.footer,nav{background:#fff;color:#000}#content{margin:24pt 0 0;padding:10px;width:100%}.wp-caption p{font-size:11pt}.home .sticky{border:0}.wrapper{height:auto;margin:0 auto;min-height:100px}}.footer{--brand:var(--footer-color);--primary-dark:var(--footer-color);background-color:#444;color:#fff;font-family:Karla,sans-serif;padding:0 0 2rem}.footer h1,.footer h2,.footer h3,.footer h4,.footer h5,.footer h6{font-size:1.125rem;font-weight:600;margin-bottom:1rem}.footer h1:before,.footer h2:before,.footer h3:before,.footer h4:before,.footer h5:before,.footer h6:before{display:none}.footer.footer--home{padding-top:4rem}.footer.footer--reading{padding-bottom:7rem}@media screen and (min-width:48rem){.footer.footer--reading{padding-bottom:4rem}}@media screen and (min-width:1330px){.footer.footer--reading{padding-bottom:1rem}}@media screen and (min-width:768px){.footer{flex-direction:row;padding-bottom:.5rem}}.footer__inner{margin:0 auto}.footer__pressbooks{align-items:center;display:flex;flex-direction:column;justify-content:space-between;margin:2rem auto 0;max-width:1330px}@media screen and (min-width:768px){.footer__pressbooks{flex-direction:row;margin:2rem auto}}.footer__pressbooks a{color:var(--footer-text)}.footer__pressbooks__icon{margin:0 1rem}.footer__pressbooks__icon>.icon--svg{height:2.8125rem;width:2.8125rem}.footer__pressbooks__links{margin-bottom:1.5rem;margin-top:1.5rem;padding:0 1.875rem}@media screen and (min-width:768px){.footer__pressbooks__links{margin:0;padding:0}}.footer__pressbooks__links__list{display:flex;flex-wrap:wrap;font-size:.875rem;justify-content:center;list-style:none;margin:0;padding-left:0}.footer__pressbooks__links__list li{padding:.125rem 0}.footer__pressbooks__links__list a{padding-left:.5rem;padding-right:.5rem}.footer__pressbooks__links__title{font-size:1rem;font-weight:600;text-align:center}.footer__pressbooks__social{align-items:center;display:flex;margin:0 1rem}.footer__pressbooks__social a{margin:0 .25em}.footer__pressbooks__social a>.icon--svg{height:2rem;width:2rem}.footer__pressbooks__social a>.youtube-link{height:2.2em;margin-right:.2em;padding-bottom:.6em;width:auto}@media (min-width:960px){.footer__pressbooks__social a>.icon--svg{height:1.5rem;width:1.5rem}.footer__pressbooks__social a>.youtube-link{height:1.9em;margin-right:.2em;padding-bottom:.7em;width:auto}}.footer__network{background-color:var(--accent,#015d75);color:var(--accent-fg);font-family:Karla,sans-serif;font-size:1rem;height:auto;margin-bottom:0;padding:2.5rem 1.875rem;text-align:center}.footer__network .social-media{margin-top:1em}.footer__network .social-media a{height:2rem;margin:0 .25em;transition:all .4s;width:2rem}.footer__network .social-media a>.icon--svg{height:2rem;width:2rem}.footer__network ul{font-weight:600;line-height:2.25;list-style:none;margin:0;padding:0;text-align:center}.footer__network__block{border-top:1px solid var(--accent-fg)}.footer__network__block:first-of-type{border-top:0}.footer__network__block a{border-bottom:1px solid transparent;color:var(--accent-fg);text-decoration:none}.footer__network__block a:focus,.footer__network__block a:hover{border-bottom:1px solid var(--accent-fg)}.footer__network__block--1{margin:0 -5px;padding:0 0 40px}.footer__network__block--2{padding:30px 7.5px}.footer__network__block--2 .widget{margin-bottom:1em}.footer__network__menu{padding:30px 7.5px 0}.footer__network__block .social-media{margin-top:0;width:100%}.footer__network__block .social-media a{border-bottom:none;margin:0 .5em 0 0}.footer__network__block .social-media a:focus,.footer__network__block .social-media a:hover{border-bottom:none}@media (min-width:960px){.footer__network{display:flex;flex-direction:row;justify-content:center}.footer__network ul{text-align:left}.footer__network__block{align-items:center;border-right:1px solid var(--accent-fg);border-top:0;display:flex;margin:0;padding:0 3.75rem}.footer__network__block,.footer__network__block--2{flex-direction:column;justify-content:center}.footer__network__block:last-of-type{border-right:0}.social-media a{margin:0 .5em 0 0}.social-media a,.social-media a>.icon--svg{height:1.5rem;width:1.5rem}}@media (min-width:1650px){.footer__network ul li{display:inline-block;margin-right:3em}}.header{font-family:Karla,sans-serif;padding:3.5rem 1rem 1.5rem}@media screen and (min-width:60rem){.header{padding:3rem 1rem}}.header__inside{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1440px}.header__logo--img,.header__logo--svg{display:inline-block;height:auto;margin-bottom:-1px;margin-right:2px;max-height:1.5rem;max-width:100px;width:auto}@media screen and (min-width:30rem) and (max-width:60rem){.header__logo--img,.header__logo--svg{max-width:150px}}@media screen and (min-width:60rem){.header__logo--img,.header__logo--svg{max-height:30px;max-width:200px}}.header__nav-icon{display:block;height:20px;position:relative;text-indent:-9999em;width:25px;z-index:999}@media screen and (min-width:60rem){.header__nav-icon{display:none}}.header__nav-icon__icon{background:var(--primary);display:block;height:3px;position:absolute;top:7px;width:25px}.header__nav-icon__icon:after,.header__nav-icon__icon:before{background:var(--primary);content:"";height:3px;width:25px}.header__nav-icon__icon:before{position:absolute;right:0;top:-7px}.header__nav-icon__icon:after{position:absolute;right:0;top:7px}.header__nav--active .header__nav-icon__icon{--header-bg:var(--primary);--header-text:var(--primary-fg);background:var(--header-text);color:var(--header-text)}.header__nav--active .header__nav-icon__icon:after,.header__nav--active .header__nav-icon__icon:before{background:var(--header-text)}.js-header-nav .nav--primary{list-style:none;margin-bottom:0;padding-left:0}.js-header-nav .nav--primary li{display:inline;font-size:1.125rem;padding-left:1rem}@media screen and (max-width:59.975rem){.js-header-nav{display:flex;flex-direction:column;justify-content:center;left:0;margin:0 0 0 -100%;padding:0 17px;position:absolute;top:0;width:100%}.js-header-nav .nav--primary li{display:block;padding-left:0}.js-header-nav a{color:var(--header-color);display:none;font-family:Karla,sans-serif;font-size:1.5rem;letter-spacing:0;line-height:3.3333333333}.header__nav--active .js-header-nav{--header-color:var(--primary-fg);background:var(--primary);margin:0;padding:6rem 52px;z-index:99}.header__nav--active .js-header-nav .nav--primary li{border-bottom:1px solid var(--header-color)}.header__nav--active .js-header-nav .nav--primary li:last-child{border-bottom:0}.header__nav--active .js-header-nav a{display:block;width:100%}.header__nav--active .js-header-nav a:hover{color:var(--header-color)}}.header--home{--brand:var(--header-color);--primary-dark:var(--header-color);--brand-accent:var(--header-color);background-color:var(--header-bg);color:var(--header-color)}.header__search{position:relative}.icon-search{vertical-align:middle}.header:not(.header--home) .icon-search{cursor:pointer;font-size:1.5rem}.header__search__form{display:inline-block;position:relative;width:12rem}.header__search__form label{left:0;position:absolute;width:12rem}.header__search__form label .icon--svg{display:inline-block;float:right;height:2rem;vertical-align:middle;width:1.5rem}.header__search__form input[type=search]{background-color:transparent;border:0;border-bottom:2px solid var(--primary);color:var(--body-color);width:12rem}.header__search__form input[type=search]:focus{border-color:var(--brand-orig)}.header__search__form input[type=search]:focus+label{text-indent:-999999rem}.header--home .header__search__form input[type=search]{border-bottom:1px solid var(--header-color);color:var(--header-color)}.header--home .header__search__form input[type=search]:focus{border-color:var(--brand-orig)}.header__search__form input[type=submit]{display:none}.nocomments{text-align:center}.section-comments{--primary-dark:var(--footer-color);--accent:var(--footer-color);background-color:var(--footer-bg);color:#fff;font-family:Karla,sans-serif;padding:2rem 1rem 2.25rem}@media screen and (min-width:768px){.section-comments{padding:4.5rem 1rem 2.5rem}}.section-comments a{color:var(--footer-color);text-decoration:underline}.section-comments a:focus,.section-comments a:hover{color:var(--primary);text-decoration:underline}.section-comments__inner{margin:0 auto;max-width:var(--reading-width,40em)}.section__title.section-comments__title{font-size:1.5rem}.section__title.section-comments__title:before{background:var(--footer-color);margin:0 auto 1rem;width:2.875rem}.section-comments__form{margin:0 auto;max-width:25rem}@media screen and (min-width:60rem){.section-comments__form{max-width:none}}.comment-reply-title{display:none}.comment-notes{text-align:center}.comment-form-author,.comment-form-comment,.comment-form-email,.comment-form-url{margin-bottom:1.25rem;margin-top:0;overflow:hidden}@media screen and (min-width:60rem){.comment-form-author,.comment-form-comment,.comment-form-email,.comment-form-url{margin-bottom:1.25rem}}.comment-form-comment{margin-bottom:1.25rem}@media screen and (min-width:60rem){.comment-form-comment{float:right;margin-bottom:0}}#commentform label{display:block;font-size:.875rem}#commentform input,#commentform textarea{padding:.375rem .75rem;width:25rem}@media screen and (min-width:60rem){#commentform input,#commentform textarea{width:18.75rem}}#commentform input{font-size:.875em}#respond .form-allowed-tags{font-size:.7em;line-height:1.2em;margin:10px 0 0 170px;width:350px}.form-submit{margin-top:2rem;text-align:center}@media screen and (min-width:60rem){.form-submit{text-align:right;width:18.75rem}}.comment-form-comment+.form-submit{margin-top:2.8rem}#comments-title{font-size:1.125rem}.commentlist{list-style-type:none;padding-left:0}.form-submit input#submit{height:auto;width:auto}.block-reading-meta__compare{margin-bottom:2rem;width:100%}.no-js .block-reading-meta__compare{display:none}.block-reading-meta__compare del,.block-reading-meta__compare ins{margin:0 .1rem;padding:.2rem;word-break:break-word}.block-reading-meta__compare del{background:#faa;color:#000;text-decoration:none}.block-reading-meta__compare ins{background:#afa;color:#000;text-decoration:none}.block-reading-meta__compare__activity.sk-double-bounce{margin-left:0}.block-reading-meta__compare__toggle[aria-expanded=true]{box-shadow:inset 0 .1rem 0 .1rem var(--primary-dark);padding-bottom:.75rem;padding-top:1rem}.block-reading-meta__compare__comparison{margin:2em auto;width:100%}.block-reading-meta__compare .diff{font-family:Inconsolata,monospace;font-size:1rem;margin:2rem 0 0;min-width:40rem;overflow:scroll;white-space:pre-wrap}.block-reading-meta__compare .diff tr{border-bottom:0;display:grid;grid-template-columns:48% 1fr 48%}.block-reading-meta__compare .diff .diff-addedline,.block-reading-meta__compare .diff .diff-context,.block-reading-meta__compare .diff .diff-deletedline{background-color:#fff;padding:1rem;vertical-align:top}.block-reading-meta__compare .diff .diff-context{background-color:#fff}.block-reading-meta__compare .diff .diff-addedline{background-color:#e9ffe9}.block-reading-meta__compare .diff .diff-deletedline{background-color:#ffe9e9}.alert{border-radius:.5rem;padding:1rem}.alert.visually-hidden{clip:rect(1px,1px,1px,1px);height:1px;overflow:hidden;position:absolute;width:1px}.alert--error{background:#f8d7da;color:#721c24}.header__search .header__search__form{width:100%}@media screen and (min-width:60rem){.header__search .header__search__form{width:12rem}}.error404 form.search-form,.header__search .header__search__form form{border-bottom:1px solid var(--primary-fg);width:100%}.error404 form.search-form label,.header__search .header__search__form form label{margin-bottom:0;position:relative;width:calc(100% - 2rem)}.error404 form.search-form input,.header__search .header__search__form form input{border-left:0;border-right:0;border-top:0;color:#fff;font-size:1.5rem;line-height:3.33333333;width:100%}.error404 form.search-form input::-moz-placeholder,.header__search .header__search__form form input::-moz-placeholder{color:var(--primary-fg)}.error404 form.search-form input:-ms-input-placeholder,.header__search .header__search__form form input:-ms-input-placeholder{color:var(--primary-fg)}.error404 form.search-form input::placeholder,.header__search .header__search__form form input::placeholder{color:var(--primary-fg)}.error404 form.search-form button,.header__search .header__search__form form button{background:transparent;border:0;color:var(--primary-fg);display:inline-block;padding:0;width:1.5rem}.error404 form.search-form button svg,.header__search .header__search__form form button svg{display:inline-block;height:1.5rem;vertical-align:middle;width:1.25rem}@media screen and (min-width:60rem){.error404 form.search-form,.header__search .header__search__form form{border-bottom:none}.error404 form.search-form label,.header__search .header__search__form form label{width:10rem}.error404 form.search-form input,.header__search .header__search__form form input{border-bottom:2px solid var(--primary);color:var(--primary);font-size:1.125rem;line-height:1.5}.error404 form.search-form input::-moz-placeholder,.header__search .header__search__form form input::-moz-placeholder{color:#666}.error404 form.search-form input:-ms-input-placeholder,.header__search .header__search__form form input:-ms-input-placeholder{color:#666}.error404 form.search-form input::placeholder,.header__search .header__search__form form input::placeholder{color:#666}.error404 form.search-form input:focus,.header__search .header__search__form form input:focus{border-bottom:2px solid var(--primary-dark);outline:none}.error404 form.search-form button,.header__search .header__search__form form button{color:var(--primary)}.error404 form.search-form button:focus,.header__search .header__search__form form button:focus{color:var(--primary-dark);outline:solid 2px var(--primary-dark)}}.home .toc{margin-bottom:4rem}.toc,.toc ol{font-family:Karla,sans-serif;list-style-type:none;padding:0}.toc li+li,.toc li ol li:first-child{margin-top:.5rem}.toc__front-matter+.toc__part,.toc__part+.toc__back-matter,.toc__part+.toc__part{margin-top:1rem}.toc button{background:transparent;border:.125rem solid transparent;border-radius:0;float:right;height:2.25rem;padding:0;width:2.25rem}.toc__title__container button{background:#fafafa;text-align:center}.toc__part>.toc__title__container button{background:#eee}.toc .icon--private{height:1rem;margin:.1875rem;vertical-align:text-bottom;width:1rem}.toc [class*="--empty"]>.toc__title__container,.toc [class*="--full"]>.toc__title__container>p>span,.toc [class*="--full"]>.toc__title__container>span{background:#fafafa;display:inline-block;min-height:2.25rem;overflow-wrap:break-word;padding:.25rem .5rem}.toc__subsections li{background:#fcfcfc;display:block;min-height:2.25rem;padding:.25rem .5rem}.toc [class*="--full"]>.toc__title__container>p>span,.toc [class*="--full"]>.toc__title__container>span{padding-left:1.68rem;text-indent:-1.18rem;width:calc(100% - 2.75rem)}.toc [class*="--full"] .toc__subsections{font-size:1rem;margin-left:1.25rem}.toc [class*="--empty"]>.toc__title__container{padding-left:1.68rem;text-indent:-1.18rem;width:100%}.toc__title__container .toc__title{margin-bottom:0}.toc__title__container .toc__author{margin:0 0 0 .75rem;text-indent:0}.toc__part>.toc__title__container{font-weight:600}.toc .toc__part--empty>.toc__title__container,.toc .toc__part--full>.toc__title__container span{background:#eee}.dropdown .toc button:focus,.dropdown .toc button:hover,.toc button:focus,.toc button:hover{border-color:var(--primary);box-shadow:none}.dropdown .toc button:active,.toc button:active{border-color:var(--primary-dark)}.toc button svg{height:1rem;margin-top:.5rem;width:1rem}.toc>li{padding-left:2rem;padding-right:2rem}.toc__toggle{margin:2rem 0 4rem;text-align:center}.toc__toggle[data-expanded=false] #hide{display:none}.toc__toggle[data-expanded=false] #show,.toc__toggle[data-expanded=true] #hide{display:inline-block}.toc__toggle[data-expanded=true] #show{display:none}.block-reading-toc{background:var(--body-bg);color:var(--body-text);margin-top:.25rem;padding-top:1rem;width:100%}.block-reading-toc .toc>li{padding-left:1rem;padding-right:1rem}@media screen and (min-width:60rem){.block-reading-toc{box-shadow:2px 3px 2px 1px hsla(0,0%,53%,.09);z-index:100}}.toc__selected .toc__title__container a{text-decoration:underline}.home #content{width:100%}.book-header,.home #content .block{margin-left:auto;margin-right:auto;max-width:60rem;width:100%}.book-header{--primary:var(--header-color);--primary-dark:var(--header-color);--accent:var(--header-color);--header-color:var(--body-bg);--header-bg:var(--body-text);background-color:var(--header-bg);color:var(--header-color);margin-bottom:4rem;padding:1.5rem 1rem 7.5rem}@media screen and (min-width:60rem){.book-header{padding:3.5rem 1rem 7.5rem}}#content .block.block-meta,.book-header{max-width:100%}.book-header__inner{display:flex;flex-direction:column;margin:0 auto;max-width:60rem;min-height:35rem;position:relative}@media screen and (min-width:768px){.book-header__inner>*{max-width:55%}}.book-header__title{font-size:2.25rem;text-align:left;text-transform:none}.book-header__title:before{margin-bottom:1.125rem;margin-left:0}.book-header__subtitle{font-family:Spectral,serif;font-size:1.5rem}.book-header__author{font-family:Karla,sans-serif;margin-bottom:1rem}@media screen and (min-width:60rem){.book-header__author{margin-bottom:2.25rem}}.book-header__cover{align-self:center;margin-bottom:1.5rem}@media screen and (min-width:768px){.book-header__cover{align-self:unset;position:absolute;right:0;top:0}.book-header__inner>.book-header__cover{max-width:38%}}.book-header__cover__image img{margin-bottom:1.5rem;max-height:500px;max-width:100%;-o-object-fit:contain;object-fit:contain}.book-header__cover__downloads{margin-bottom:1.5rem;padding-bottom:.5rem}.book-header__cover__downloads button:hover{text-decoration:underline}.book-header__cover__downloads button:focus{outline:auto;text-decoration:underline}.book-header__cover__downloads ul{list-style:none;margin:0;padding:0}.book-header__cover__downloads li{align-items:center;background-color:var(--header-color);display:flex;font-family:Karla,sans-serif;font-size:1rem;font-weight:700;height:3rem;padding:0 1rem}.book-header__cover__downloads li:focus,.book-header__cover__downloads li:hover{background-color:#fafdff}.book-header__cover__downloads a{color:var(--cover-header-bg)}.book-header__share{align-items:center;align-self:center;display:flex;margin-top:1rem}.book-header__share svg{height:2.25rem;margin:0 .5rem;width:1.875rem}@media screen and (min-width:768px) and (max-width:60em){.book-header__share{display:none}}@media screen and (min-width:768px){.book-header__share{align-items:flex-start;align-self:unset}.book-header__share>:first-child{margin-left:0}}.book-header__share a{cursor:pointer}.book-header__share.book-header__cover__share{display:none}.book-header__share.book-header__cover__share svg{height:2.25rem;margin:0 .5rem;width:1.875rem}@media screen and (min-width:768px) and (max-width:60em){.book-header__share.book-header__cover__share{display:block}}.book-header__description{font-family:Spectral,serif;font-size:1.125rem;line-height:1.5;margin-bottom:1.875rem}.book-header__description a{text-decoration:underline}.book-header__license{align-items:center;align-self:center;display:flex;flex-wrap:wrap;justify-content:space-around;margin-bottom:2.375rem}@media screen and (min-width:768px){.book-header__license{align-self:unset;justify-content:flex-start}}.book-header__license__text{margin-bottom:.5rem;margin-top:.5rem;text-align:center}@media screen and (min-width:768px){.book-header__license__text{text-align:left}}.book-header__license__icons{align-items:center;display:flex}.book-header__license__icons .icon{height:2.25rem;margin:0 .5rem;width:1.875rem}.book-header__license__icons>.icon:first-child{margin-left:0}.book-header__license__icons>.icon:last-child{margin-right:1rem}.book-header__cta{align-items:center;align-self:center;display:flex;flex-flow:column wrap}@media screen and (min-width:768px){.book-header__cta{align-items:flex-start;align-self:unset;flex-direction:row}}.book-header__cta .call-to-action{background-color:var(--header-bg);border-color:var(--header-color);color:var(--header-color);margin-bottom:.875rem;min-width:15rem}@media screen and (min-width:768px){.book-header__cta .call-to-action{margin-right:1.375rem}}.book-header__cta .call-to-action:focus,.book-header__cta .call-to-action:hover{background-color:var(--header-color);color:var(--header-bg)}.license-text{font-family:Karla,sans-serif;font-weight:700}.block-info{font-size:1.125rem;margin-bottom:6rem;padding-left:0;padding-right:0}@media screen and (min-width:60rem){.block-info{padding-left:1rem;padding-right:1rem}}.block-info__inner{margin:0 auto;max-width:1330px;padding-bottom:4rem}@media screen and (min-width:60rem){.block-info__inner{display:flex;padding-bottom:6rem}.block-info__inner__content{flex:1 1 0}.block-info__inner__content:last-child{margin-left:7rem}.block-info__inner__content:empty{display:none}.block-info__inner__content:empty+.block-info__inner__content{margin-left:0}}.block-info__title{margin-bottom:1.5rem}@media screen and (min-width:768px){.block-info__title{margin-bottom:3rem}}.block-info__description{font-family:Spectral,serif;font-size:1.125rem}.block-info__subsection{padding-left:1rem;padding-right:1rem}@media screen and (min-width:60rem){.block-info__subsection{padding-left:0;padding-right:0}}.block-info__subject{margin-bottom:0}.block-info__contributing-authors,.block-info__lead-author,.block-info__license,.block-info__subject{border-bottom:1px solid #ececec;margin-bottom:1rem;padding-bottom:1rem}@media screen and (max-width:767px){.block-info__contributing-authors:last-child,.block-info__lead-author:last-child,.block-info__license:last-child,.block-info__subject:last-child{border-bottom:0}}.block-info__lead-author__authors{align-items:center;display:flex;justify-content:flex-start}.block-info__lead-author__photo{border:3px solid var(--accent);border-radius:58px;height:116px;margin-right:.625rem;overflow:hidden;width:116px}.block-info__lead-author__photo img{height:auto;width:100%}.block-info__lead-author__name{margin-right:2rem}.block-meta{box-shadow:0 2px 4px 0 rgba(0,0,0,.15);font-size:1.125rem}@media screen and (min-width:60rem){.block-meta{background-color:var(--body-bg-alt);box-shadow:none;padding-left:2rem;padding-right:2rem;padding-top:7rem}.block-meta.section{padding-bottom:6rem}}.block-meta__content-box{background-color:var(--body-bg);margin:0 auto;max-width:1200px;padding-left:2rem;padding-right:2rem}@media screen and (min-width:60rem){.block-meta__content-box{box-shadow:0 2px 4px 0 rgba(0,0,0,.15);padding:4rem 8rem}}.block-meta__title{margin-bottom:1.5rem}@media screen and (min-width:768px){.block-meta__title{margin-bottom:3rem}}.block-meta__inner{padding-bottom:2rem}@media screen and (min-width:768px){.block-meta__inner{padding-bottom:4rem}}@media screen and (min-width:60rem){.block-meta__inner{padding-bottom:0}}.block-meta__list{-moz-column-rule:1px solid #b7b7b7;column-rule:1px solid #b7b7b7}@media screen and (min-width:768px){.block-meta__list{-moz-column-count:3;column-count:3;-moz-column-gap:3rem;column-gap:3rem}}.block-meta__subsection{-moz-column-break-inside:avoid;break-inside:avoid;margin-bottom:2.5rem;overflow:hidden;page-break-inside:avoid}.block-meta__subtitle{color:var(--primary);font-family:Karla,sans-serif;font-size:1.125rem;margin-bottom:.5rem}.block-info a,.block-meta a{text-decoration:underline}#content .license-attribution img{height:2em;width:auto}.footer--page{padding-bottom:1rem;padding-top:1rem}.footer.footer--reading{padding-bottom:12rem;padding-top:1rem}@media screen and (min-width:60rem){.footer.footer--reading{padding-bottom:4rem}}@media screen and (min-width:1330px){.footer.footer--reading{padding-bottom:4rem}}body:not(.home) .header{padding-left:0;padding-right:0}body:not(.home) .header__inside{padding-left:1rem;padding-right:1rem}.reading-header{--header-bg:var(--body-text);--header-color:var(--body-bg);background-color:var(--header-bg);color:var(--header-color);font-family:Karla,sans-serif;margin-top:3rem}.reading-header .reading-header__end-container a,.reading-header .reading-header__title a{color:var(--header-color);text-decoration:none}.reading-header .reading-header__end-container a:focus,.reading-header .reading-header__end-container a:hover,.reading-header .reading-header__title a:focus,.reading-header .reading-header__title a:hover{color:var(--header-color);text-decoration:underline}.reading-header__inside{display:flex;flex-direction:column}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__inside{flex-direction:row;justify-content:space-between}}.reading-header__end-container,.reading-header__title,.reading-header__toc{align-items:center;display:flex;min-height:5rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container,body:not(.has-annotator-pane) .reading-header__title,body:not(.has-annotator-pane) .reading-header__toc{height:5rem}}.reading-header__end-container,.reading-header__toc{border-top:3px solid var(--header-color);font-size:1rem;order:1;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container,body:not(.has-annotator-pane) .reading-header__toc{border-top:0;flex:1 0 17.5rem;order:0;width:calc(50vw - 400px)}}.reading-header__toc{background:var(--header-bg);display:flex;flex-direction:column;justify-content:center}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__toc{align-items:flex-end;justify-content:flex-start}}.reading-header__toc .reading-header__toc__title{font-size:1rem;font-weight:500;height:5rem;margin-bottom:0;padding-left:.25rem;padding-right:.25rem;text-transform:uppercase;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__toc .reading-header__toc__title{width:100%}body:not(.has-annotator-pane) .reading-header__toc .reading-header__toc__title button{padding-left:2rem;padding-right:2rem}}.reading-header__toc .reading-header__toc__title button{border-bottom:0;font-size:1rem;font-weight:500;height:5rem;padding-bottom:0;padding-left:2.25rem;padding-right:2.25rem;text-transform:uppercase}.reading-header__toc .reading-header__toc__title button:active,.reading-header__toc .reading-header__toc__title button:focus,.reading-header__toc .reading-header__toc__title button:hover{color:var(--header-color);text-decoration:underline}@media screen and (min-width:768px){.reading-header__toc .reading-header__toc__title button{font-size:1.125rem}.reading-header__toc .reading-header__toc__title button .arrow{margin-top:.65rem}}.reading-header__title{background-color:var(--footer-bg);border-bottom:2px solid var(--body-bg);border-top:2px solid var(--body-bg);font-size:1.25rem;justify-content:center;margin-bottom:0;text-align:center;text-transform:uppercase;width:100%}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__title{flex:1 1 var(--reading-width,40em);max-width:var(--reading-width,40em)}}.reading-header__end-container{display:none;padding-left:2.25rem;padding-right:2.25rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .reading-header__end-container{display:flex;justify-content:flex-end;padding-left:2rem;padding-right:2rem}body:not(.has-annotator-pane) .reading-header__end-container a{font-size:1.125rem;text-transform:uppercase}}.a11y-toolbar{z-index:9990}@media screen and (max-width:59.975rem){.a11y-toolbar{position:absolute}}body{display:flex;flex-direction:column;min-height:100vh}body #page{display:flex;flex:1;flex-direction:column}body #content{flex-grow:1}.page .hentry{margin-bottom:4rem;padding:0 1rem}@media screen and (min-width:60rem){.page .hentry{padding:0}}#content h2.page-title,body.page:not(.home) #content h2,body:not(.home) #content h2.denied-title{font-family:Karla,sans-serif;font-size:1.5rem;margin:2rem 0 1rem;text-align:center}#content h2.page-title:before,body.page:not(.home) #content h2:before,body:not(.home) #content h2.denied-title:before{display:none}#content p.h5p-count{font-family:Karla,sans-serif;margin-bottom:1.5rem;text-align:center}#h5p-show-hide{margin-left:.3rem}#h5p-listing-table{border-bottom:1px solid #eee}#content .h5p-pagination{font-family:Karla,sans-serif;margin:0 auto;padding-top:1rem;text-align:center}#content .h5p-pagination .page-numbers{font-size:1.2rem;padding:.3rem}.blog #content h3{text-indent:0}#content .denied-text p{font-family:Spectral,serif;font-size:1.125rem}#content .denied-text p a{color:var(--primary)}#content .denied-text p a:focus,#content .denied-text p a:hover{color:var(--primary-dark)}.posts-navigation{margin:2rem 0}.nav-next,.nav-previous{margin-bottom:2rem}.nav-next a,.nav-previous a{align-items:center;display:flex;font-family:Karla,sans-serif}.nav-next svg,.nav-previous svg{height:1rem;width:1rem}.nav-previous{float:left}.nav-next{float:right}.nav-previous svg{margin-right:.5rem}.nav-next svg{margin-left:.5rem}.private-block{margin-bottom:4rem}.footer.footer--home{padding-top:1rem}.buy-book li+li{margin-top:1rem}.bookstore-logo-link{margin-right:.5rem}h1.reading-header__title:before{display:none}.error404,.search-results,.single-back-matter,.single-chapter,.single-front-matter,.single-part{display:flex;flex-direction:column;min-height:100vh}.error404 #page,.search-results #page,.single-back-matter #page,.single-chapter #page,.single-front-matter #page,.single-part #page{display:flex;flex:1;flex-direction:column;min-height:100vh}.error404 #main,.search-results #main,.single-back-matter #main,.single-chapter #main,.single-front-matter #main,.single-part #main{display:flex;flex-direction:column;flex-grow:1}.error404 #content,.search-results #content,.single-back-matter #content,.single-chapter #content,.single-front-matter #content,.single-part #content{flex-grow:1;font-size:1.125rem;margin-bottom:2rem;padding:0 1rem}@media screen and (min-width:60rem){body:not(.has-annotator-pane) .error404 #content,body:not(.has-annotator-pane) .search-results #content,body:not(.has-annotator-pane) .single-back-matter #content,body:not(.has-annotator-pane) .single-chapter #content,body:not(.has-annotator-pane) .single-front-matter #content,body:not(.has-annotator-pane) .single-part #content{padding:0}}.error404 #content h1:before,.error404 #content h2:before,.search-results #content h1:before,.search-results #content h2:before,.single-back-matter #content h1:before,.single-back-matter #content h2:before,.single-chapter #content h1:before,.single-chapter #content h2:before,.single-front-matter #content h1:before,.single-front-matter #content h2:before,.single-part #content h1:before,.single-part #content h2:before{display:none}.back-matter div[hidden]+h1:not(:first-of-type),.chapter div[hidden]+h1:not(:first-of-type),.front-matter div[hidden]+h1:not(:first-of-type),.part div[hidden]+h1:not(:first-of-type){margin-top:0}.back-matter h1[data-collapsed=true],.chapter h1[data-collapsed=true],.front-matter h1[data-collapsed=true],.part h1[data-collapsed=true]{margin-bottom:0}.back-matter .post-password-form,.chapter .post-password-form,.front-matter .post-password-form,.part .post-password-form{margin-top:1rem}.back-matter .post-password-form p+p,.chapter .post-password-form p+p,.front-matter .post-password-form p+p,.part .post-password-form p+p{margin-top:1rem;text-indent:0}.back-matter .post-password-form label,.chapter .post-password-form label,.front-matter .post-password-form label,.part .post-password-form label{width:100%}.back-matter .post-password-form label:after,.chapter .post-password-form label:after,.front-matter .post-password-form label:after,.part .post-password-form label:after{clear:both;content:"";display:block;width:100%}.back-matter .post-password-form [type=submit],.chapter .post-password-form [type=submit],.front-matter .post-password-form [type=submit],.part .post-password-form [type=submit]{margin-top:1rem}.part-title{text-align:right}#content .entry-content a.call-to-action,.edit-link .call-to-action{color:var(--primary)}#content .entry-content a.call-to-action:focus,#content .entry-content a.call-to-action:hover,.edit-link .call-to-action:focus,.edit-link .call-to-action:hover{color:var(--primary-dark)}.nav-reading{background-color:var(--primary);bottom:0;display:block;left:0;position:fixed;width:100%}@media screen and (min-width:60rem){.nav-reading{display:flex;flex-direction:row;z-index:1}}.nav-reading__next,.nav-reading__previous{color:var(--primary-fg);min-height:2.3125rem}@media screen and (min-width:60rem){.nav-reading__next,.nav-reading__previous{float:left;width:50%}}.nav-reading__next{text-align:right}.nav-reading__next a,.nav-reading__previous a{border:1px solid transparent;color:var(--primary-fg);display:block;font-family:Karla,sans-serif;font-size:.875rem;height:100%;padding:.5rem 1rem}.nav-reading__next a:focus,.nav-reading__previous a:focus{border:1px solid var(--primary-fg);outline:none}.nav-reading__next a:hover,.nav-reading__previous a:hover{background:var(--primary-dark)}.nav-reading__previous a{border-bottom-color:var(--primary-dark)}@media screen and (min-width:60rem){.nav-reading__previous a{border-bottom-color:transparent;border-right-color:var(--primary-dark)}}.nav-reading__next a{border-top-color:var(--primary-dark)}@media screen and (min-width:60rem){.nav-reading__next a{border-left-color:var(--primary-dark);border-top-color:transparent}}.nav-reading__next a svg,.nav-reading__previous a svg{fill:currentColor;height:1em;vertical-align:text-bottom;width:1em}.nav-reading__previous a svg{margin-right:.5em}.nav-reading__next a svg{margin-left:.5em}.nav-reading__next,.nav-reading__previous,.nav-reading__up{z-index:11}.nav-reading__up{align-items:center;background-color:var(--primary);border-radius:50%;color:var(--primary-fg);display:flex;flex-direction:column;height:2.5rem;justify-content:center;left:50%;opacity:0;padding:0;position:absolute;top:-3rem;transform:translate(-50%);width:2.5rem}.nav-reading__up:focus{background-color:var(--primary);border:1px solid var(--primary-fg)}.nav-reading__up:hover{background-color:var(--primary-dark);text-decoration:none}.nav-reading__up:active,.nav-reading__up:hover{color:var(--primary-fg)}@media screen and (max-width:59.975rem){.nav-reading--multipage .nav-reading__up{top:-6rem}}.nav-reading__up .nav-reading__up__text{display:none;font-family:Spectral,serif;font-size:.875rem}.nav-reading__up svg{height:1em;margin:0;width:1em}.nav-reading--page{margin-top:2rem}.nav-reading--page__next,.nav-reading--page__previous{font-family:Karla,sans-serif;font-size:1rem}.nav-reading--page__next a,.nav-reading--page__previous a{color:var(--body-color)}.nav-reading--page__next a:hover,.nav-reading--page__previous a:hover{color:var(--primary-dark);text-decoration:underline}.nav-reading--page__next a svg,.nav-reading--page__previous a svg{fill:currentColor;height:1em;vertical-align:text-bottom;width:1em}.nav-reading--page__previous a svg{margin-right:.5em}.nav-reading--page__next a svg{margin-left:.5em}.button--text{all:inherit;border:0;display:flex;justify-content:space-between;padding:.5em 0;width:100%}.button--text:active,.button--text:hover{background:transparent;border:0;box-shadow:none;color:inherit}.button--text:focus{background:transparent;color:inherit}.button--text:focus svg{outline:2px solid}.button--text span{display:block;max-width:calc(100% - 1.5em)}.button--text span span{display:inline}.button--text svg{height:1em;margin-left:.5em}.no-navigation .footer,.no-navigation .header,.no-navigation .nav-reading,[aria-expanded=true] .vert{display:none}.no-navigation.single #content{box-sizing:border-box;max-width:var(--reading-width);width:100%}.mejs-container,.mejs-embed{z-index:0}.block-reading-meta__subsection h2+p{margin-top:0}.block-reading-meta__subsection a{text-decoration:underline}.search-results{padding-left:0}.search-results h2:before{display:none}
diff --git a/header.php b/header.php
index 9ee96a76b..4cb3be291 100644
--- a/header.php
+++ b/header.php
@@ -81,14 +81,15 @@
 						restore_current_blog();
 						?>
 					<?php } else { ?>
-					<svg class="header__logo--svg" aria-role="img">
+					<svg class="header__logo--svg" role="img">
 						<use href="#logo-pressbooks" />
 					</svg><?php } ?>
 				</a>
 			</div>
 			<div class="header__nav">
 				<a class="header__nav-icon js-header-nav-toggle" href="#navigation"><?php _e( 'Toggle Menu', 'pressbooks-book' ); ?><span class="header__nav-icon__icon"></span></a>
-				<nav class="js-header-nav" id="navigation">
+				<nav aria-labelledby="primary-nav" class="js-header-nav" id="navigation">
+					<p id="primary-nav" class="screen-reader-text"><?php _e( 'Primary Navigation', 'pressbooks-book' ); ?></p>
 					<ul id="nav-primary-menu" class="nav--primary">
 						<?php echo \PressbooksBook\Helpers\display_menu(); ?>
 					</ul>
@@ -97,7 +98,8 @@
 		</div>
 		<?php if ( ! is_front_page() && pb_get_first_post_id() ) { ?>
 			<div class="reading-header">
-				<nav class="reading-header__inside">
+				<nav aria-labelledby="book-toc" class="reading-header__inside">
+					<p id="book-toc" class="screen-reader-text"><?php _e( 'Book Contents Navigation', 'pressbooks-book' ); ?></p>
 					<?php if ( is_single() ) { ?>
 					<div class="reading-header__toc dropdown">
 						<div class="reading-header__toc__title"><?php _e( 'Contents', 'pressbooks-book' ); ?></div>
diff --git a/inc/helpers/namespace.php b/inc/helpers/namespace.php
index 0bad40786..949001c7e 100644
--- a/inc/helpers/namespace.php
+++ b/inc/helpers/namespace.php
@@ -477,7 +477,8 @@ function get_links( $echo = true ) {
 
 	if ( $echo ) :
 		?>
-		<nav class="nav-reading <?php echo $multipage ? 'nav-reading--multipage' : '' ?>" role="navigation">
+		<nav aria-labelledby="reading-nav" class="nav-reading <?php echo $multipage ? 'nav-reading--multipage' : '' ?>" role="navigation">
+		<p id="reading-nav" class="screen-reader-text">Previous/next navigation</p>
 		<div class="nav-reading__previous js-nav-previous">
 			<?php if ( $prev_chapter !== '/' ) { ?>
 				<?php /* translators: %s: post title */ ?>
diff --git a/languages/bg_BG.mo b/languages/bg_BG.mo
index 101ffa28a..702945327 100644
Binary files a/languages/bg_BG.mo and b/languages/bg_BG.mo differ
diff --git a/languages/bg_BG.po b/languages/bg_BG.po
index 8f6db0fc4..ab270d4a9 100644
--- a/languages/bg_BG.po
+++ b/languages/bg_BG.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Radost G <radosvetagiuleva@abv.bg>, 2020\n"
 "Language-Team: Bulgarian (Bulgaria) (https://www.transifex.com/pressbooks/teams/9194/bg_BG/)\n"
@@ -128,16 +128,24 @@ msgstr "Лого за %s"
 msgid "Toggle Menu"
 msgstr "Превключване на менюто"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Съдържание"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Отидете на заглавната страница на %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Купи"
 
@@ -262,7 +270,7 @@ msgid_plural "Contributors"
 msgstr[0] ""
 msgstr[1] ""
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Лиценз"
@@ -283,7 +291,7 @@ msgstr "Издател"
 msgid "Publication Date"
 msgstr "Дата на публикуване"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Идентификатор на цифров обект (DOI)"
 
@@ -301,39 +309,39 @@ msgstr "ХашТаг"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Предходни: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Следващи: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%sна"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$sна %2$s "
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Промени)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Коментарът Ви чака одобрение от Администратор."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -392,7 +400,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Купи от apple.com"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Купи тук:"
 
@@ -451,7 +459,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Промени"
 
@@ -477,16 +485,16 @@ msgstr "Изображение на корицата за %s"
 msgid "Download this book"
 msgstr "Запази тази книга"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Описание на книгата"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Прочети Книга"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Купи Книга"
 
@@ -643,6 +651,6 @@ msgstr "Търси в книга"
 msgid "Search"
 msgstr "Търсене"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Сподели Тази Книга"
diff --git a/languages/de_DE.mo b/languages/de_DE.mo
index 0e396a2d7..14e62bbeb 100644
Binary files a/languages/de_DE.mo and b/languages/de_DE.mo differ
diff --git a/languages/de_DE.po b/languages/de_DE.po
index 73e603110..df4a0b9fd 100644
--- a/languages/de_DE.po
+++ b/languages/de_DE.po
@@ -6,9 +6,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: nebulon42, 2019\n"
 "Language-Team: German (https://www.transifex.com/pressbooks/teams/9194/de/)\n"
@@ -129,16 +129,24 @@ msgstr "Logo für %s"
 msgid "Toggle Menu"
 msgstr "Menü umschalten"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Inhalt"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Zum Deckblatt von %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Kaufen"
 
@@ -265,7 +273,7 @@ msgid_plural "Contributors"
 msgstr[0] "Mitarbeiter"
 msgstr[1] "Mitarbeitende"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Lizenz"
@@ -286,7 +294,7 @@ msgstr "Verlag"
 msgid "Publication Date"
 msgstr "Erscheinungsdatum"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Digitaler Objektbezeichner (DOI)"
 
@@ -304,39 +312,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Zurück zu: %s "
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Weiter zu: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s auf"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s auf %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Bearbeiten)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Ihr Beitrag wartet auf die Moderation."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -397,7 +405,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Bei <a href=\"%1$s\">apple.com</a> kaufen"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Hier kaufen:"
 
@@ -456,7 +464,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Bearbeiten"
 
@@ -482,16 +490,16 @@ msgstr "Titelbild für %s"
 msgid "Download this book"
 msgstr "Laden Sie dieses Buch herunter"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Buchbeschreibung"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Buch lesen"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Buch kaufen"
 
@@ -646,6 +654,6 @@ msgstr "Im Buch suchen &hellip;"
 msgid "Search"
 msgstr "Suchen"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Dieses Buch teilen"
diff --git a/languages/en_GB.mo b/languages/en_GB.mo
index ffb82be86..240b13270 100644
Binary files a/languages/en_GB.mo and b/languages/en_GB.mo differ
diff --git a/languages/en_GB.po b/languages/en_GB.po
index e18869a9e..298ded59a 100644
--- a/languages/en_GB.po
+++ b/languages/en_GB.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Steel Wagstaff <steel@pressbooks.com>, 2021\n"
 "Language-Team: English (United Kingdom) (https://www.transifex.com/pressbooks/teams/9194/en_GB/)\n"
@@ -124,16 +124,24 @@ msgstr "Logo for %s"
 msgid "Toggle Menu"
 msgstr "Toggle Menu"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Contents"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Go to the cover page of %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Buy"
 
@@ -258,7 +266,7 @@ msgid_plural "Contributors"
 msgstr[0] "Contributor"
 msgstr[1] "Contributors"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licence"
@@ -279,7 +287,7 @@ msgstr "Publisher"
 msgid "Publication Date"
 msgstr "Publication Date"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Digital Object Identifier (DOI)"
 
@@ -297,39 +305,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Previous: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Next: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s on"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s at %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Edit)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Your comment is awaiting moderation."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -389,7 +397,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Purchase on  <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Purchase here:"
 
@@ -448,7 +456,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Edit"
 
@@ -474,16 +482,16 @@ msgstr "Cover image for %s"
 msgid "Download this book"
 msgstr "Download this book"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Book Description"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Read Book"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Buy Book"
 
@@ -640,6 +648,6 @@ msgstr "Search in book &hellip;"
 msgid "Search"
 msgstr "Search"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Share This Book"
diff --git a/languages/es_CR.mo b/languages/es_CR.mo
index 39e14f33f..47f48ed6b 100644
Binary files a/languages/es_CR.mo and b/languages/es_CR.mo differ
diff --git a/languages/es_CR.po b/languages/es_CR.po
index 8f5f5127a..8adc6812e 100644
--- a/languages/es_CR.po
+++ b/languages/es_CR.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Steel Wagstaff <steel@pressbooks.com>, 2021\n"
 "Language-Team: Spanish (Costa Rica) (https://www.transifex.com/pressbooks/teams/9194/es_CR/)\n"
@@ -126,16 +126,24 @@ msgstr "Logotipo para %s"
 msgid "Toggle Menu"
 msgstr "Alternar menú"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Contenido"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Vaya a la portada de %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Comprar"
 
@@ -260,7 +268,7 @@ msgid_plural "Contributors"
 msgstr[0] "Contribuidor"
 msgstr[1] "Colaboradores"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licencia"
@@ -281,7 +289,7 @@ msgstr "Editorial"
 msgid "Publication Date"
 msgstr "Fecha de publicación"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Identificador de objeto digital (DOI)"
 
@@ -299,39 +307,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Anterior: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Siguiente: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s en"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s a las %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Editar)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Tu comentario está pendiente de moderación."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -392,7 +400,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Compra en <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Comprar aquí:"
 
@@ -451,7 +459,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Editar"
 
@@ -477,16 +485,16 @@ msgstr "Imagen de portada de %s"
 msgid "Download this book"
 msgstr "Descargar este libro"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Descripción del libro"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Leer libro"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Comprar libro"
 
@@ -643,6 +651,6 @@ msgstr "Buscar en el libro&hellip;"
 msgid "Search"
 msgstr "Búsqueda"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Compartir este libro"
diff --git a/languages/es_ES.mo b/languages/es_ES.mo
index c39bd8c1c..e3c660895 100644
Binary files a/languages/es_ES.mo and b/languages/es_ES.mo differ
diff --git a/languages/es_ES.po b/languages/es_ES.po
index 7619ae11e..fb0872c76 100644
--- a/languages/es_ES.po
+++ b/languages/es_ES.po
@@ -7,9 +7,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Eduardo Vera <evera@shinydreamer.xyz>, 2021\n"
 "Language-Team: Spanish (https://www.transifex.com/pressbooks/teams/9194/es/)\n"
@@ -127,16 +127,24 @@ msgstr "Logotipo de %s"
 msgid "Toggle Menu"
 msgstr "Alternar menú"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Contenido"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Ir a la cubierta de %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Comprar"
 
@@ -261,7 +269,7 @@ msgid_plural "Contributors"
 msgstr[0] "Colaborador"
 msgstr[1] "Colaboradores"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licencia"
@@ -282,7 +290,7 @@ msgstr "Editorial"
 msgid "Publication Date"
 msgstr "Fecha de publicación"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Identificador de objeto digital (DOI)"
 
@@ -300,39 +308,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Anterior: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Siguiente: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s en"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s en %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Editar)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Tu comentario está pendiente de moderación."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -393,7 +401,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Comprar en <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Comprar aquí:"
 
@@ -454,7 +462,7 @@ msgid "View h5p activity"
 msgstr "Ver la actividad H5P"
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Editar"
 
@@ -480,16 +488,16 @@ msgstr "Imagen de cubierta por %s"
 msgid "Download this book"
 msgstr "Descargar este libro"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Descripción del libro"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Leer el libro"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Comprar el libro"
 
@@ -647,6 +655,6 @@ msgstr "Buscar en el libro &hellip;"
 msgid "Search"
 msgstr "Buscar"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Compartir este libro"
diff --git a/languages/fr_FR.mo b/languages/fr_FR.mo
index 2832b2720..5f405b760 100644
Binary files a/languages/fr_FR.mo and b/languages/fr_FR.mo differ
diff --git a/languages/fr_FR.po b/languages/fr_FR.po
index bc5ba6461..601c08984 100644
--- a/languages/fr_FR.po
+++ b/languages/fr_FR.po
@@ -11,9 +11,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Steel Wagstaff <steel@pressbooks.com>, 2019\n"
 "Language-Team: French (https://www.transifex.com/pressbooks/teams/9194/fr/)\n"
@@ -135,16 +135,24 @@ msgstr "Logo pour %s"
 msgid "Toggle Menu"
 msgstr "Afficher/masquer le menu"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Table des matières"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Aller à la page couverture de %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Acheter"
 
@@ -273,7 +281,7 @@ msgid_plural "Contributors"
 msgstr[0] "Contributeur"
 msgstr[1] "Collaborateurs"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "License"
@@ -294,7 +302,7 @@ msgstr "Éditeur"
 msgid "Publication Date"
 msgstr "Date de publication"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "identificateur d&rsquo;objets numériques (DOI)"
 
@@ -312,39 +320,39 @@ msgstr "Mot-clic"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Précédent&nbsp;: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Suivant&nbsp;: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s le"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s à %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Modifier)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Votre commentaire a été soumis aux modérateurs."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Fonction rétrolien Pingback&nbsp;:"
 
@@ -405,7 +413,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Acheter sur <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Acheter ici&nbsp;:"
 
@@ -464,7 +472,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Modifier"
 
@@ -490,16 +498,16 @@ msgstr "Page couverture de %s"
 msgid "Download this book"
 msgstr "Télécharger ce livre"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Description du livre"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Lire le livre"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Acheter le livre"
 
@@ -655,6 +663,6 @@ msgstr "Rechercher dans le livre &hellip;"
 msgid "Search"
 msgstr "Chercher"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Partagez ce livre"
diff --git a/languages/hr.mo b/languages/hr.mo
index fcf161e13..404d96020 100644
Binary files a/languages/hr.mo and b/languages/hr.mo differ
diff --git a/languages/hr.po b/languages/hr.po
index 2d02c5b34..305cce341 100644
--- a/languages/hr.po
+++ b/languages/hr.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Dubravko Cvikl <dcvikl@cvikl.hr>, 2019\n"
 "Language-Team: Croatian (Croatia) (https://www.transifex.com/pressbooks/teams/9194/hr_HR/)\n"
@@ -123,16 +123,24 @@ msgstr "Logo za %s"
 msgid "Toggle Menu"
 msgstr "Prebaci izbornik"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Sadržaj"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Idi na naslovnicu za %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Kupi"
 
@@ -263,7 +271,7 @@ msgstr[0] "Suradnik"
 msgstr[1] "Suradnici"
 msgstr[2] "Suradnici"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licenca"
@@ -284,7 +292,7 @@ msgstr "Izdavač"
 msgid "Publication Date"
 msgstr "Datum izdavanja"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Digital Object Identifier (DOI)"
 
@@ -302,39 +310,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Prethodno: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Slijedeće: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s na"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s na %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Uredi)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Vaš komentar čeka odobrenje."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Povratna veza:"
 
@@ -395,7 +403,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Purchase on  <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Kupite ovdje:"
 
@@ -454,7 +462,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Uredi"
 
@@ -480,16 +488,16 @@ msgstr "Korice za %s"
 msgid "Download this book"
 msgstr "Preuzmi ovu knjigu"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Opis knjige"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Pročitaj knjigu"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Kupi knjigu"
 
@@ -644,6 +652,6 @@ msgstr "Pronađi u knjizi &hellip;"
 msgid "Search"
 msgstr "Pretraživanje"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Podijeli ovu knjigu"
diff --git a/languages/kn.mo b/languages/kn.mo
new file mode 100644
index 000000000..de75e7b91
Binary files /dev/null and b/languages/kn.mo differ
diff --git a/languages/kn.po b/languages/kn.po
new file mode 100644
index 000000000..cb75fe0df
--- /dev/null
+++ b/languages/kn.po
@@ -0,0 +1,658 @@
+# Copyright (C) 2021 Pressbooks (Book Oven Inc.)
+# This file is distributed under the GPL v3.0 or later.
+# Translators:
+# Omshivaprakash H L <omshivaprakash@gmail.com>, 2021
+# 
+msgid ""
+msgstr ""
+"Project-Id-Version: McLuhan 2.14.0\n"
+"Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
+"PO-Revision-Date: 2017-06-22 17:45+0000\n"
+"Last-Translator: Omshivaprakash H L <omshivaprakash@gmail.com>, 2021\n"
+"Language-Team: Kannada (https://www.transifex.com/pressbooks/teams/9194/kn/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: kn\n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+"X-Domain: pressbooks-book\n"
+"X-Generator: WP-CLI 2.3.0\n"
+
+#. Theme Name of the theme
+msgid "McLuhan"
+msgstr "ಮೆಕ್‍ಲುಹಾನ್"
+
+#. Theme URI of the theme
+msgid "https://pressbooks.com/themes/pressbooks-book"
+msgstr "https://pressbooks.com/themes/pressbooks-book"
+
+#. Description of the theme
+msgid ""
+"This theme is named after Canadian media theorist Marshall McLuhan, who "
+"coined the phrase “the medium is the message.” It is designed for academic "
+"writing and is also suitable for fiction. Headings are set in Cormorant "
+"Garamond, and body type is set in Lora."
+msgstr ""
+"ಈ ವಿಷಯಕ್ಕೆ ಕೆನಡಾದ ಮಾಧ್ಯಮ ಸಿದ್ಧಾಂತಿ ಮಾರ್ಷಲ್ ಮೆಕ್‍ಲುಹಾನ್ ಅವರ ಹೆಸರಿಡಲಾಗಿದೆ, "
+"ಅವರು \"ಮಾಧ್ಯಮವು ಸಂದೇಶವಾಗಿದೆ\" ಎಂಬ ಪದಗುಚ್ಛವನ್ನು ರಚಿಸಿದರು. ಇದನ್ನು ಶೈಕ್ಷಣಿಕ "
+"ಬರವಣಿಗೆಗಾಗಿ ವಿನ್ಯಾಸಗೊಳಿಸಲಾಗಿದೆ ಮತ್ತು ಕಾಲ್ಪನಿಕಕಥೆಗೂ ಸೂಕ್ತವಾಗಿದೆ. ಕಾರ್ಮೊರಾಂಟ್ "
+"ಗರಮಂಡ್ ನಲ್ಲಿ ಶೀರ್ಷಿಕೆಗಳನ್ನು ಹೊಂದಿಸಲಾಗಿದೆ, ಮತ್ತು ದೇಹದ ಪ್ರಕಾರವನ್ನು ಲೋರಾದಲ್ಲಿ "
+"ಹೊಂದಿಸಲಾಗಿದೆ."
+
+#. Author of the theme
+msgid "Pressbooks (Book Oven Inc.)"
+msgstr "ಪ್ರೆಸ್‍ಬುಕ್ಸ್ (ಬುಕ್ ಓವನ್ ಇಂಕ್.)"
+
+#. Author URI of the theme
+msgid "https://pressbooks.com"
+msgstr "https://pressbooks.com"
+
+#: 404.php:2
+msgid "Oops! That content can&rsquo;t be found."
+msgstr "ಓಹ್! ಆ ವಿಷಯವು ಸಿಗುಲಿಲ್ಲ."
+
+#: 404.php:3
+msgid "It looks like nothing was found at this location. Try a search?"
+msgstr "ಈ ಸ್ಥಳದಲ್ಲಿ ಏನೂ ಕಂಡುಬಂದಿಲ್ಲ ಎಂದು ತೋರುತ್ತದೆ. ಹುಡುಕಾಟವನ್ನು ಪ್ರಯತ್ನಿಸಿ?"
+
+#: comments.php:2
+msgid "Feedback/Errata"
+msgstr "ಪ್ರತಿಕ್ರಿಯೆ/ಎರ್ರಾಟಾ"
+
+#: comments.php:6
+msgid ""
+"This post is password protected. Enter the password to view any comments."
+msgstr ""
+"ಈ ಪೋಸ್ಟ್ ಪಾಸ್ ವರ್ಡ್ ರಕ್ಷಿತವಾಗಿದೆ. ಯಾವುದೇ ಪ್ರತಿಕ್ರಿಯೆಗಳನ್ನು ವೀಕ್ಷಿಸಲು ಪಾಸ್ "
+"ವರ್ಡ್ ನಮೂದಿಸಿ."
+
+#: comments.php:36 comments.php:47
+msgid "<span class=\"meta-nav\">&larr;</span> Older Comments"
+msgstr "<span class=\"meta-nav\">&larr;</span> ಹಳೆಯ ಪ್ರತಿಕ್ರಿಯೆಗ‍‍ಳು"
+
+#: comments.php:37 comments.php:48
+msgid "Newer Comments <span class=\"meta-nav\">&rarr;</span>"
+msgstr "ಕಡಿಮೆ ಪ್ರತಿಕ್ರಿಯೆಗಳು <span class=\"meta-nav\">&rarr;</span>"
+
+#: comments.php:56
+msgid "Comments are closed."
+msgstr "ಪ್ರತಿಕ್ರಿಯೆಗಳನ್ನು ಮುಚ್ಚಲಾಗಿದೆ."
+
+#: comments.php:64
+msgid "Submit"
+msgstr "ಸಲ್ಲಿಸು"
+
+#. translators: %s: Pressbooks
+#: footer.php:64
+msgid "Powered by %s"
+msgstr "%s ನಿಂದ ಸಾಮರ್ಥ್ಯ ಪಡೆದಿದೆ"
+
+#: footer.php:66
+msgid "Guides and Tutorials"
+msgstr "ಮಾರ್ಗದರ್ಶಿಗಳು ಮತ್ತು ಟ್ಯುಟೋರಿಯಲ್‍ಗಳು"
+
+#: footer.php:73 footer.php:75
+msgid "Pressbooks on YouTube"
+msgstr "ಯೂಟ್ಯೂಬ್ ನಲ್ಲಿ ಪ್ರೆಸ್‍ಬುಕ್ಸ್"
+
+#: footer.php:77 footer.php:81
+msgid "Pressbooks on Twitter"
+msgstr "ಟ್ವಿಟರ್ ನಲ್ಲಿ ಪ್ರೆಸ್‍ಬುಕ್ಸ್"
+
+#: functions.php:16
+msgid "Dependencies Missing"
+msgstr "ಅವಲಂಬನೆಗಳು ಕಾಣೆಯಾಗಿವೆ"
+
+#: functions.php:17
+msgid "You must run <code>composer install</code> from the McLuhan directory."
+msgstr "ನೀವು ಮೆಕ್‍ಲುಹಾನ್ <code>composer install</code>  ಡೈರೆಕ್ಟರಿಯಿಂದ ಓಡಬೇಕು."
+
+#: functions.php:28
+msgid "Cannot find Pressbooks install."
+msgstr "ಪ್ರೆಸ್‍ಬುಕ್ಸ್ ಸ್ಥಾಪಿಸಲು ಸಾಧ್ಯವಿಲ್ಲ."
+
+#: header.php:60
+msgid "Skip to content"
+msgstr "ವಿಷಯಕ್ಕೆ ಬಿಟ್ಟುಬಿಡಿ"
+
+#. translators: %s: name of network
+#: header.php:79
+msgid "Logo for %s"
+msgstr "%s ಲೋಗೋ"
+
+#: header.php:90
+msgid "Toggle Menu"
+msgstr "ಟಾಗಲ್ ಮೆನು"
+
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
+msgid "Contents"
+msgstr "ಪರಿವಿಡಿ"
+
+#. translators: %s: the title of the book
+#: header.php:114
+msgid "Go to the cover page of %s"
+msgstr "%s ಮುಖಪುಟಕ್ಕೆ ಹೋಗಿ"
+
+#: header.php:118 inc/helpers/namespace.php:226
+msgid "Buy"
+msgstr "ಖರೀದಿಸಿ"
+
+#: inc/actions/namespace.php:64
+msgid "Comparison loading…"
+msgstr "ಹೋಲಿಕೆ ಲೋಡ್‍ಆಗುತ್ತಿದೆ…"
+
+#: inc/actions/namespace.php:65
+msgid "Comparison loaded."
+msgstr "ಹೋಲಿಕೆ ಲೋಡ್ ಮಾಡಲಾಗಿದೆ."
+
+#: inc/actions/namespace.php:66
+msgid "The original chapter could not be loaded."
+msgstr "ಮೂಲ ಅಧ್ಯಾಯವನ್ನು ಲೋಡ್ ಮಾಡಲು ಸಾಧ್ಯವಾಗಲಿಲ್ಲ."
+
+#: inc/actions/namespace.php:67
+msgid "Toggle contents of"
+msgstr "ಇದರ ವಿಷಯಗಳನ್ನು ಟಾಗಲ್ ಮಾಡಿ"
+
+#: inc/actions/namespace.php:215
+msgid "Enable Image Lightbox"
+msgstr "ಇಮೇಜ್ ಲೈಟ್ ಬಾಕ್ಸ್ ಕ್ರಿಯಾತ್ಮಕಗೊಳಿಸು"
+
+#: inc/actions/namespace.php:220
+msgid "Show linked images in a lightbox"
+msgstr "ಲಿಂಕ್ ಮಾಡಿದ ಚಿತ್ರಗಳನ್ನು ಲೈಟ್ ಬಾಕ್ಸ್ ನಲ್ಲಿ ತೋರಿಸು"
+
+#: inc/filters/namespace.php:19
+msgid "Private"
+msgstr "ಖಾಸಗಿ"
+
+#: inc/helpers/namespace.php:145
+msgid "Public Domain"
+msgstr "ಸಾರ್ವಜನಿಕ ಡೊಮೇನ್"
+
+#: inc/helpers/namespace.php:148
+msgid "Creative Commons Attribution"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್"
+
+#: inc/helpers/namespace.php:151
+msgid "Creative Commons Attribution ShareAlike"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್ ಶೇರ್ ಅಲೈಕ್"
+
+#: inc/helpers/namespace.php:154
+msgid "Creative Commons Attribution NoDerivatives"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್ ನೋಡೆರಿವೇಟಿವ್ಸ್"
+
+#: inc/helpers/namespace.php:157
+msgid "Creative Commons Attribution NonCommercial"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್ ನಾನ್ ಕಮರ್ಷಿಯಲ್"
+
+#: inc/helpers/namespace.php:160
+msgid "Creative Commons Attribution NonCommercial ShareAlike"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್ ನಾನ್ ಕಮರ್ಷಿಯಲ್ ಶೇರ್ ಅಲೈಕ್"
+
+#: inc/helpers/namespace.php:163
+msgid "Creative Commons Attribution NonCommercial NoDerivatives"
+msgstr "ಕ್ರಿಯೇಟಿವ್ ಕಾಮನ್ಸ್ ಆಟ್ರಿಬ್ಯೂಷನ್ ನಾನ್ ಕಮರ್ಷಿಯಲ್ ನೋಡೆರಿವೇಟಿವ್ಸ್"
+
+#: inc/helpers/namespace.php:167
+msgid "All Rights Reserved"
+msgstr "ಎಲ್ಲಾ ಹಕ್ಕುಗಳನ್ನು ಕಾಯ್ದಿರಿಸಲಾಗಿದೆ"
+
+#: inc/helpers/namespace.php:181
+msgid "Check out this great book on Pressbooks."
+msgstr "ಪ್ರೆಸ್‍ಬುಕ್ಸ್ ಈ ಮಹಾನ್ ಪುಸ್ತಕವನ್ನು ಪರಿಶೀಲಿಸಿ."
+
+#: inc/helpers/namespace.php:209
+msgid "Home"
+msgstr "ಮುಖಪುಟ"
+
+#: inc/helpers/namespace.php:217
+msgid "Read"
+msgstr "ಓದಿ"
+
+#: inc/helpers/namespace.php:235
+msgid "Sign in"
+msgstr "ಸೈನ್ ಇನ್"
+
+#: inc/helpers/namespace.php:244
+msgid "Admin"
+msgstr "ನಿರ್ವಹಣೆಗಾರ"
+
+#: inc/helpers/namespace.php:252
+msgid "Sign out"
+msgstr "ಸೈನ್ ಔಟ್"
+
+#: inc/helpers/namespace.php:436 partials/content-cover-book-header.php:17
+#: partials/content-cover-book-info.php:52
+msgid "Author"
+msgid_plural "Authors"
+msgstr[0] "ಲೇಖಕ"
+msgstr[1] "ಲೇಖಕರು"
+
+#: inc/helpers/namespace.php:437
+msgid "Editor"
+msgid_plural "Editors"
+msgstr[0] "ಸಂಪಾದಕ"
+msgstr[1] "ಸಂಪಾದಕರು"
+
+#: inc/helpers/namespace.php:438
+msgid "Translator"
+msgid_plural "Translators"
+msgstr[0] "ಅನುವಾದಕ"
+msgstr[1] "ಅನುವಾದಕರು"
+
+#: inc/helpers/namespace.php:439
+msgid "Reviewer"
+msgid_plural "Reviewers"
+msgstr[0] "ಸಮೀಕ್ಷಕ"
+msgstr[1] "ಸಮೀಕ್ಷಕರು"
+
+#: inc/helpers/namespace.php:440
+msgid "Illustrator"
+msgid_plural "Illustrators"
+msgstr[0] "ಇಲಸ್ಟ್ರೇಟರ್"
+msgstr[1] "ಇಲಸ್ಟ್ರೇಟರ್‍ ಗಳು"
+
+#: inc/helpers/namespace.php:441
+msgid "Contributor"
+msgid_plural "Contributors"
+msgstr[0] "ಕೊಡುಗೆದಾರ"
+msgstr[1] "ಕೊಡುಗೆದಾರರು"
+
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
+#: partials/content-cover-book-info.php:67 single.php:35
+msgid "License"
+msgstr "ಪರವಾನಗಿ"
+
+#: inc/helpers/namespace.php:443
+msgid "Primary Subject"
+msgstr "ಪ್ರಾಥಮಿಕ ವಿಷಯ"
+
+#: inc/helpers/namespace.php:444
+msgid "Additional Subject(s)"
+msgstr "ಹೆಚ್ಚುವರಿ ವಿಷಯ(ಗಳು)"
+
+#: inc/helpers/namespace.php:445
+msgid "Publisher"
+msgstr "ಪ್ರಕಾಶಕ"
+
+#: inc/helpers/namespace.php:446
+msgid "Publication Date"
+msgstr "ಪ್ರಕಟಣೆ ದಿನಾಂಕ"
+
+#: inc/helpers/namespace.php:447 single.php:43
+msgid "Digital Object Identifier (DOI)"
+msgstr "ಡಿಜಿಟಲ್ ಆಬ್ಜೆಕ್ಟ್ ಐಡೆಂಟಿಫೈಯರ್ (ಡಿಒಐ)"
+
+#: inc/helpers/namespace.php:448
+msgid "Ebook ISBN"
+msgstr "ಇಬುಕ್ ಐಎಸ್‍ಬಿಎನ್"
+
+#: inc/helpers/namespace.php:449
+msgid "Print ISBN"
+msgstr "ಮುದ್ರಣ ಐಎಸ್‍ಬಿಎನ್"
+
+#: inc/helpers/namespace.php:450
+msgid "Hashtag"
+msgstr "ಹ್ಯಾಶ್‍ಟ್ಯಾಗ್"
+
+#. translators: %s: post title
+#. translators: %s: post short title or title
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
+msgid "Previous: %s"
+msgstr "ಹಿಂದಿನ: %s"
+
+#. translators: %s: post title,
+#. translators: %s: post short title or title
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
+msgid "Next: %s"
+msgstr "ಮುಂದೆ: %s"
+
+#. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
+#. comment
+#: inc/helpers/namespace.php:568
+msgid "%s on"
+msgstr "‍%s ಮೂಲಕ"
+
+#. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
+#. comment
+#: inc/helpers/namespace.php:568
+msgid "%1$s at %2$s"
+msgstr "%1$s ರಲ್ಲಿ %2$s"
+
+#. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
+#. comment
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
+msgid "(Edit)"
+msgstr "(ಸಂಪಾದಿಸಿ)"
+
+#: inc/helpers/namespace.php:571
+msgid "Your comment is awaiting moderation."
+msgstr "ನಿಮ್ಮ ಟಿಪ್ಪಣಿ ಪರಾಮರ್ಶೆಗಾಗಿ ಕಾಯುತ್ತಿದೆ."
+
+#: inc/helpers/namespace.php:597
+msgid "Pingback:"
+msgstr "ಮರುಕೋರಿಕೆ (Pingback):"
+
+#: inc/intervention.php:11
+msgid "Hello,"
+msgstr "ಹಲೋ,"
+
+#: index.php:18
+msgid "This book does not contain any public content."
+msgstr "ಈ ಪುಸ್ತಕದಲ್ಲಿ ಯಾವುದೇ ಸಾರ್ವಜನಿಕ ವಿಷಯವಿಲ್ಲ."
+
+#: page-about.php:5
+msgid "About The Book"
+msgstr "ಈ ಪುಸ್ತಕದ ಬಗ್ಗೆ"
+
+#: page-about.php:21 page-buy.php:10 page-buy.php:18
+msgid "It's coming!"
+msgstr "ಅದು ಬರುತ್ತಿದೆ!"
+
+#: page-authors.php:31
+msgid "Authors"
+msgstr "ಲೇಖಕರು"
+
+#: page-buy.php:5
+msgid "Buy the Book"
+msgstr "ಪುಸ್ತಕವನ್ನು ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to book, %2$s: title of book
+#: page-buy.php:21
+msgid "You can buy <a href=\"%1$s\">%2$s</a> by following any of the links below:"
+msgstr ""
+"ಕೆಳಗಿನ ಯಾವುದೇ ಲಿಂಕ್ ಗಳನ್ನು ಅನುಸರಿಸುವ ಮೂಲಕ ನೀವು <a href=\"%1$s\">%2$s</a> "
+"ಖರೀದಿಸಬಹುದು:"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:25
+msgid "Purchase on  <a href=\"%1$s\">amazon.com</a>"
+msgstr "<a href=\"%1$s\">amazon.com</a> ಮೇಲೆ ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:30
+msgid "Purchase on  <a href=\"%1$s\">oreilly.com</a>"
+msgstr "<a href=\"%1$s\">oreilly.com</a> ಮೇಲೆ ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:35
+msgid "Purchase on  <a href=\"%1$s\">barnesandnoble.com</a>"
+msgstr "<a href=\"%1$s\">barnesandnoble.com</a> ಮೇಲೆ ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:40
+msgid "Purchase on  <a href=\"%1$s\">kobobooks.com</a>"
+msgstr "<a href=\"%1$s\">kobobooks.com</a> ಮೇಲೆ ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:45
+msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
+msgstr "<a href=\"%1$s\">apple.com</a> ಮೇಲೆ ಖರೀದಿಸಿ"
+
+#. translators: %1$s: url to purchase
+#: page-buy.php:49
+msgid "Purchase here:"
+msgstr "ಇಲ್ಲಿ ಖರೀದಿಸಿ:"
+
+#: page-h5p-listing.php:8
+msgid "H5P activities list"
+msgstr "ಎಚ್5ಪಿ ಚಟುವಟಿಕೆಗಳ ಪಟ್ಟಿ"
+
+#: page-h5p-listing.php:10
+msgid "This book includes "
+msgstr "ಈ ಪುಸ್ತಕವು ಒಳಗೊಂಡಿದೆ "
+
+#: page-h5p-listing.php:12
+msgid ""
+"H5P activities. Only those which have been inserted into book content will "
+"be included if the book is cloned."
+msgstr ""
+"ಎಚ್5ಪಿ ಚಟುವಟಿಕೆಗಳು. ಪುಸ್ತಕವನ್ನು ಕ್ಲೋನ್ ಮಾಡಿದರೆ ಪುಸ್ತಕದ ವಿಷಯಕ್ಕೆ "
+"ಸೇರಿಸಿದವುಗಳನ್ನು ಮಾತ್ರ ಸೇರಿಸಲಾಗುತ್ತದೆ."
+
+#: page-h5p-listing.php:13
+msgid "Expand all"
+msgstr "ಎಲ್ಲಾ ವಿಸ್ತರಿಸಿ"
+
+#: page-h5p-listing.php:13
+msgid "Hide all"
+msgstr "ಎಲ್ಲಾ ಮರೆಮಾಡಿ"
+
+#: page-h5p-listing.php:13
+msgid "Expand all activities"
+msgstr "ಎಲ್ಲಾ ಚಟುವಟಿಕೆಗಳನ್ನು ವಿಸ್ತರಿಸಿ"
+
+#: page-h5p-listing.php:18
+msgid "ID"
+msgstr "ಐಡಿ"
+
+#: page-h5p-listing.php:19 partials/content-cover-metadata.php:8
+msgid "Title"
+msgstr "ಶೀರ್ಷಿಕೆ"
+
+#: page-h5p-listing.php:20
+msgid "Activity type"
+msgstr "ಚಟುವಟಿಕೆ ಪ್ರಕಾರ"
+
+#: page-h5p-listing.php:21
+msgid "Show/Hide"
+msgstr "ತೋರಿಸು/ಮರೆಮಾಡು"
+
+#: page-h5p-listing.php:33
+msgid "Show activity"
+msgstr "ಚಟುವಟಿಕೆ ತೋರಿಸು"
+
+#: page-h5p-listing.php:33
+msgid "Hide activity"
+msgstr "ಚಟುವಟಿಕೆ ಮರೆಮಾಡಿ"
+
+#: page-h5p-listing.php:33
+msgid "View h5p activity"
+msgstr "ಎಚ್5ಪಿ ಚಟುವಟಿಕೆ ವೀಕ್ಷಿಸಿ"
+
+#: page.php:13 partials/content-single-legacy.php:69
+#: partials/content-single.php:90
+msgid "Edit"
+msgstr "ಸಂಪಾದಿಸಿ"
+
+#: page.php:18
+msgid "Pages:"
+msgstr "ಪುಟಗಳು:"
+
+#: partials/content-cover-book-header.php:11
+msgid "Book Title"
+msgstr "ಪುಸ್ತಕ ಶೀರ್ಷಿಕೆ"
+
+#: partials/content-cover-book-header.php:14
+msgid "Subtitle"
+msgstr "ಉಪಶೀರ್ಷಿಕೆ"
+
+#. translators: %s: title of book
+#: partials/content-cover-book-header.php:26
+#: partials/content-cover-book-header.php:32
+msgid "Cover image for %s"
+msgstr "%s ಗಾಗಿ ಇಮೇಜ್ ಕವರ್ ಮಾಡಿ"
+
+#: partials/content-cover-book-header.php:54
+msgid "Download this book"
+msgstr "ಈ ಪುಸ್ತಕವನ್ನು ಡೌನ್ ಲೋಡ್ ಮಾಡಿ"
+
+#: partials/content-cover-book-header.php:93
+#: partials/content-cover-book-info.php:6
+msgid "Book Description"
+msgstr "ಪುಸ್ತಕ ವಿವರಣೆ"
+
+#: partials/content-cover-book-header.php:105
+msgid "Read Book"
+msgstr "ಪುಸ್ತಕ ಓದಿ"
+
+#: partials/content-cover-book-header.php:112
+msgid "Buy Book"
+msgstr "ಪುಸ್ತಕ ಖರೀದಿಸಿ"
+
+#: partials/content-cover-book-info.php:2
+msgid "Book Information"
+msgstr "ಪುಸ್ತಕ ಮಾಹಿತಿ"
+
+#: partials/content-cover-book-info.php:23
+msgid "Book Source"
+msgstr "ಪುಸ್ತಕ ಮೂಲ"
+
+#. translators: %$1s: title of book, link to book, %2$s: attribution string
+#. for the book, %3$s: publisher of book, %4$s: license for book
+#: partials/content-cover-book-info.php:30
+msgid ""
+"This book is a cloned version of %1$s%2$s, published using Pressbooks%3$s "
+"under a %4$s license. It may differ from the original."
+msgstr ""
+"ಈ ಪುಸ್ತಕವು %1$s%2$s ಕ್ಲೋನ್ ಮಾಡಿದ ಆವೃತ್ತಿಯಾಗಿದ್ದು, ಪ್ರೆಸ್‍ಬುಕ್ಸ್ ಬಳಸಿಕೊಂಡು "
+"ಪ್ರಕಟಿಸಲಾಗಿದೆ%3$s %4$s ಪರವಾನಗಿಯ ಅಡಿಯಲ್ಲಿ. ಇದು ಮೂಲಕ್ಕಿಂತ ಭಿನ್ನವಾಗಿರಬಹುದು."
+
+#. translators: %2$s: authors of book
+#. translators: %3$s: publisher of book
+#: partials/content-cover-book-info.php:33
+#: partials/content-cover-book-info.php:35
+msgid " by %s"
+msgstr "‍%s ಮೂಲಕ"
+
+#. translators: %s: link to source book
+#: partials/content-cover-book-info.php:41
+msgid ""
+"This book was cloned from a source that is no longer available. The source "
+"URL was %s. This book may differ from the original."
+msgstr ""
+"ಈ ಪುಸ್ತಕವನ್ನು ಇನ್ನು ಮುಂದೆ ಲಭ್ಯವಿಲ್ಲದ ಮೂಲದಿಂದ ಕ್ಲೋನ್ ಮಾಡಲಾಗಿದೆ. ಮೂಲ ಯುಆರ್ ಎಲ್"
+" %s. ಈ ಪುಸ್ತಕವು ಮೂಲಪುಸ್ತಕಕ್ಕಿಂತ ಭಿನ್ನವಾಗಿರಬಹುದು."
+
+#: partials/content-cover-book-info.php:62
+msgid "Contributors"
+msgstr "ಕೊಡುಗೆದಾರರು"
+
+#: partials/content-cover-book-info.php:72
+msgid "Subject"
+msgstr "ವಿಷಯ"
+
+#: partials/content-cover-book-info.php:86
+#: partials/content-cover-metadata.php:63
+msgid "Click for more information"
+msgstr "ಹೆಚ್ಚಿನ ಮಾಹಿತಿಗಾಗಿ ಕ್ಲಿಕ್ ಮಾಡಿ"
+
+#: partials/content-cover-metadata.php:3
+msgid "Metadata"
+msgstr "ಮೆಟಾಡೇಟಾ"
+
+#: partials/content-cover-toc.php:5
+msgid "Show All Contents"
+msgstr "ಎಲ್ಲಾ ವಿಷಯಗಳನ್ನು ತೋರಿಸು"
+
+#: partials/content-cover-toc.php:6
+msgid "Hide All Contents"
+msgstr "ಎಲ್ಲಾ ವಿಷಯಗಳನ್ನು ಮರೆಮಾಡಿ"
+
+#. translators: %1$s: chapter title, %2$s: book title, %3$s: book author(s)
+#: partials/content-difftool.php:52
+msgid "This chapter is adapted from %1$s in %2$s by %3$s."
+msgstr "ಈ ಅಧ್ಯಾಯವನ್ನು %2$s %1$s %3$s ಅಳವಡಿಸಿಕೊಂಡಿದೆ."
+
+#: partials/content-difftool.php:66
+msgid ""
+"Note: The comparison below is between this text and the <strong>current "
+"version</strong> of the text from which it was adapted."
+msgstr ""
+"ಸೂಚನೆ: ಈ ಪಠ್ಯ ಮತ್ತು ಅದನ್ನು ಅಳವಡಿಸಿದ ಪಠ್ಯದ <strong>ಪ್ರಸ್ತುತ ಆವೃತ್ತಿಯ</strong>"
+" ನಡುವೆ ಕೆಳಗಿನ ಹೋಲಿಕೆ ಇದೆ."
+
+#: partials/content-difftool.php:67
+msgid "additions"
+msgstr "ಸೇರ್ಪಡೆಗಳು"
+
+#: partials/content-difftool.php:67
+msgid "deletions"
+msgstr "ಅಳಿಸುವಿಕೆಗಳು"
+
+#: partials/content-none.php:2
+msgid "Nothing Found"
+msgstr "ಏನೂ ಸಿಗಲಿಲ್ಲ"
+
+#: partials/content-none.php:3
+msgid ""
+"Sorry, but nothing matched your search terms. Please try again with some "
+"different keywords."
+msgstr ""
+"ಕ್ಷಮಿಸಿ, ಆದರೆ ನಿಮ್ಮ ಹುಡುಕಾಟ ದ ನಿಯಮಗಳಿಗೆ ಯಾವುದೂ ಹೊಂದಿಕೆಯಾಗಲಿಲ್ಲ. ದಯವಿಟ್ಟು "
+"ಕೆಲವು ವಿಭಿನ್ನ ಕೀವರ್ಡ್ ಗಳೊಂದಿಗೆ ಮತ್ತೆ ಪ್ರಯತ್ನಿಸಿ."
+
+#: partials/content-single-legacy.php:41 partials/content-single.php:42
+msgid "Previous Page"
+msgstr "ಹಿಂದಿನ ಪುಟ "
+
+#: partials/content-single-legacy.php:52 partials/content-single.php:53
+msgid "Next Page"
+msgstr "ಮುಂದಿನ ಪುಟ"
+
+#: private.php:4
+msgid "Access Denied"
+msgstr "ಪ್ರವೇಶ ನಿರಾಕರಿಸಲಾಗಿದೆ"
+
+#. translators: link to sign in
+#: private.php:10
+msgid ""
+"This book is private, and accessible only to registered users. If you have "
+"an account you can %s."
+msgstr ""
+"ಈ ಪುಸ್ತಕವು ಖಾಸಗಿಯಾಗಿದೆ, ಮತ್ತು ನೋಂದಾಯಿತ ಬಳಕೆದಾರರಿಗೆ ಮಾತ್ರ ಪ್ರವೇಶಿಸಬಹುದು. ನೀವು"
+" ಖಾತೆಯನ್ನು ಹೊಂದಿದ್ದರೆ ನೀವು %s."
+
+#: private.php:14
+msgid "sign in here"
+msgstr "ಇಲ್ಲಿ ಸೈನ್ ಇನ್ ಮಾಡಿ"
+
+#. translators: link to Pressbooks.com
+#: private.php:23
+msgid "You can also set up your own Pressbooks book at %s."
+msgstr ""
+"ನೀವು %s ನಲ್ಲಿ ನಿಮ್ಮ ಸ್ವಂತ ಪ್ಪ್ರೆಸ್‍ಬುಕ್ಸ್ ಪುಸ್ತಕವನ್ನು ಸಹ ಸ್ಥಾಪಿಸಬಹುದು."
+
+#. translators: search string
+#: search.php:6
+msgid "Search Results for: %s"
+msgstr "ಇದಕ್ಕಾಗಿ ಫಲಿತಾಂಶಗಳನ್ನು ಹುಡುಕಿ: %s"
+
+#: search.php:18
+msgid "Previous page"
+msgstr "ಹಿಂದಿನ ಪುಟ"
+
+#: search.php:19
+msgid "Next page"
+msgstr "ಮುಂದಿನ ಪುಟ"
+
+#: search.php:20
+msgid "Paged navigation"
+msgstr "ಪೇಜ್ಡ್ ನ್ಯಾವಿಗೇಶನ್"
+
+#: searchform.php:3
+msgctxt "label"
+msgid "Search in book:"
+msgstr "ಪುಸ್ತಕದಲ್ಲಿ ಶೋಧಿಸು:"
+
+#: searchform.php:4
+msgctxt "placeholder"
+msgid "Search in book &hellip;"
+msgstr "ಪುಸ್ತಕದಲ್ಲಿ ಶೋಧಿಸು ..."
+
+#: searchform.php:8
+msgid "Search"
+msgstr "ಹುಡುಕಿ"
+
+#: single.php:59
+msgid "Share This Book"
+msgstr "ಈ ಪುಸ್ತಕವನ್ನು ಹಂಚಿಕೊಳ್ಳಿ"
diff --git a/languages/lv.mo b/languages/lv.mo
index a1f08c311..38b5d5f81 100644
Binary files a/languages/lv.mo and b/languages/lv.mo differ
diff --git a/languages/lv.po b/languages/lv.po
index cb3a63237..4a1b4e4de 100644
--- a/languages/lv.po
+++ b/languages/lv.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Antonio D., 2018\n"
 "Language-Team: Latvian (https://www.transifex.com/pressbooks/teams/9194/lv/)\n"
@@ -120,16 +120,24 @@ msgstr ""
 msgid "Toggle Menu"
 msgstr "Pārslēgt izvēlni"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Saturs "
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr ""
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Nopirkt"
 
@@ -264,7 +272,7 @@ msgstr[0] "Līdzstrādnieka"
 msgstr[1] "Līdzstrādnieks"
 msgstr[2] "Līdzstrādnieki"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licence"
@@ -285,7 +293,7 @@ msgstr "Izdevējs"
 msgid "Publication Date"
 msgstr "Publikācijas datums"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr ""
 
@@ -303,39 +311,39 @@ msgstr "Atsauces tags"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr ""
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Rediģēt)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Jūsu komentārs gaida pārbaudi."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Atbalspaziņošana:"
 
@@ -394,7 +402,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr ""
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Iegadāties te:"
 
@@ -453,7 +461,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Rediģēt"
 
@@ -479,16 +487,16 @@ msgstr ""
 msgid "Download this book"
 msgstr "lejuplādēt šo gramatu"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Grāmatas apraksts "
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Lasīt grāmatu"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Nopirkt grāmatu"
 
@@ -637,6 +645,6 @@ msgstr ""
 msgid "Search"
 msgstr "Meklēt"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Dalīties ar šo grāmatu"
diff --git a/languages/nl_NL.mo b/languages/nl_NL.mo
index 2c882306b..f591abc88 100644
Binary files a/languages/nl_NL.mo and b/languages/nl_NL.mo differ
diff --git a/languages/nl_NL.po b/languages/nl_NL.po
index b9966eb75..e9274d2cd 100644
--- a/languages/nl_NL.po
+++ b/languages/nl_NL.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Nienke Coppens <nienke.coppens@gmail.com>, 2020\n"
 "Language-Team: Dutch (Netherlands) (https://www.transifex.com/pressbooks/teams/9194/nl_NL/)\n"
@@ -126,16 +126,24 @@ msgstr "Logo voor %s"
 msgid "Toggle Menu"
 msgstr "Schakelen Menu"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Inhoud"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr "Ga naar de cover pagina van %s"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Koop"
 
@@ -260,7 +268,7 @@ msgid_plural "Contributors"
 msgstr[0] "Bijdrager"
 msgstr[1] "Bijdragers"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Licentie"
@@ -281,7 +289,7 @@ msgstr "Uitgever"
 msgid "Publication Date"
 msgstr "Datum van Uitgave"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Digital Object Identifier (DOI)"
 
@@ -299,39 +307,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Vorige: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Volgende: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s op"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s op%2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Bewerk)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Uw commentaar wacht op moderatie."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Pingback:"
 
@@ -392,7 +400,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Koop op  <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Koop hier:"
 
@@ -451,7 +459,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Bewerk"
 
@@ -477,16 +485,16 @@ msgstr "Omslagafbeelding voor %s"
 msgid "Download this book"
 msgstr "Download dit boek"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Boekomschrijving"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Lees Boek"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Koop Boek"
 
@@ -641,6 +649,6 @@ msgstr "Zoek in boek &hellip;"
 msgid "Search"
 msgstr "Zoeken"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Deel dit Boek"
diff --git a/languages/pl.mo b/languages/pl.mo
index 4682d4e74..777b015b9 100644
Binary files a/languages/pl.mo and b/languages/pl.mo differ
diff --git a/languages/pl.po b/languages/pl.po
index 33b6ae606..fa86159d3 100644
--- a/languages/pl.po
+++ b/languages/pl.po
@@ -6,9 +6,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Robert Szmurło <robert.szmurlo@ee.pw.edu.pl>, 2020\n"
 "Language-Team: Polish (https://www.transifex.com/pressbooks/teams/9194/pl/)\n"
@@ -119,16 +119,24 @@ msgstr ""
 msgid "Toggle Menu"
 msgstr ""
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Spis treści"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr ""
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Kup"
 
@@ -265,7 +273,7 @@ msgstr[1] ""
 msgstr[2] ""
 msgstr[3] ""
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr ""
@@ -286,7 +294,7 @@ msgstr "Wydawca"
 msgid "Publication Date"
 msgstr "Data wydania"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr ""
 
@@ -304,39 +312,39 @@ msgstr ""
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Poprzednie"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Następne"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Zmień)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr ""
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr ""
 
@@ -397,7 +405,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Kup na  <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Kup tutaj:"
 
@@ -456,7 +464,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Edytuj"
 
@@ -482,16 +490,16 @@ msgstr ""
 msgid "Download this book"
 msgstr "Pobierz tą książkę"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Opis książki"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Czytaj książkę"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Kup książkę"
 
@@ -642,6 +650,6 @@ msgstr "Szukaj w książce &hellip;"
 msgid "Search"
 msgstr "Szukaj"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Udostępnij książkę"
diff --git a/languages/pressbooks-book.pot b/languages/pressbooks-book.pot
index e67a6d0b0..c8cd1eecd 100644
--- a/languages/pressbooks-book.pot
+++ b/languages/pressbooks-book.pot
@@ -2,14 +2,14 @@
 # This file is distributed under the GPL v3.0 or later.
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "X-Generator: WP-CLI 2.3.0\n"
 "X-Domain: pressbooks-book\n"
@@ -112,18 +112,27 @@ msgstr ""
 msgid "Toggle Menu"
 msgstr ""
 
-#: header.php:103
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102
+#: partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105
 #: index.php:14
 #: partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr ""
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr ""
 
-#: header.php:116
+#: header.php:118
 #: inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr ""
@@ -251,7 +260,7 @@ msgstr[0] ""
 msgstr[1] ""
 
 #: inc/helpers/namespace.php:442
-#: partials/content-cover-book-header.php:102
+#: partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67
 #: single.php:35
 msgid "License"
@@ -274,7 +283,7 @@ msgid "Publication Date"
 msgstr ""
 
 #: inc/helpers/namespace.php:447
-#: single.php:45
+#: single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr ""
 
@@ -292,39 +301,39 @@ msgstr ""
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484
-#: inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485
+#: inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr ""
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494
-#: inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495
+#: inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of comment
-#: inc/helpers/namespace.php:567
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568
+#: inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr ""
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr ""
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr ""
 
@@ -385,7 +394,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr ""
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr ""
 
@@ -444,7 +453,7 @@ msgstr ""
 
 #: page.php:13
 #: partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr ""
 
@@ -470,16 +479,16 @@ msgstr ""
 msgid "Download this book"
 msgstr ""
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr ""
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr ""
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr ""
 
@@ -617,6 +626,6 @@ msgstr ""
 msgid "Search"
 msgstr ""
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr ""
diff --git a/languages/ru_RU.mo b/languages/ru_RU.mo
index 88463ace4..66f439da3 100644
Binary files a/languages/ru_RU.mo and b/languages/ru_RU.mo differ
diff --git a/languages/ru_RU.po b/languages/ru_RU.po
index daa992da3..f9639ff54 100644
--- a/languages/ru_RU.po
+++ b/languages/ru_RU.po
@@ -5,9 +5,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Antonio D., 2018\n"
 "Language-Team: Russian (https://www.transifex.com/pressbooks/teams/9194/ru/)\n"
@@ -119,16 +119,24 @@ msgstr ""
 msgid "Toggle Menu"
 msgstr "Переключить меню"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "Содержание"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr ""
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Купить"
 
@@ -272,7 +280,7 @@ msgstr[1] "Составители"
 msgstr[2] "Составители"
 msgstr[3] "Составители"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Лицензия"
@@ -293,7 +301,7 @@ msgstr "Издатель"
 msgid "Publication Date"
 msgstr "Дата публикации"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr ""
 
@@ -311,39 +319,39 @@ msgstr "Хэштег"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr ""
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr ""
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Редактировать)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Ваш комментарий ожидает модерации."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Автоматическое уведомление:"
 
@@ -402,7 +410,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr ""
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Приобрести здесь:"
 
@@ -461,7 +469,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Редактировать"
 
@@ -487,16 +495,16 @@ msgstr ""
 msgid "Download this book"
 msgstr "Скачать эту книгу"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Описание книги"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Читать книгу"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Купить книгу"
 
@@ -645,6 +653,6 @@ msgstr ""
 msgid "Search"
 msgstr "Поиск"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Поделиться книгой"
diff --git a/languages/tr_TR.mo b/languages/tr_TR.mo
index 4c4538ff6..05c96c14d 100644
Binary files a/languages/tr_TR.mo and b/languages/tr_TR.mo differ
diff --git a/languages/tr_TR.po b/languages/tr_TR.po
index 5645897ea..905f19c12 100644
--- a/languages/tr_TR.po
+++ b/languages/tr_TR.po
@@ -6,9 +6,9 @@
 # 
 msgid ""
 msgstr ""
-"Project-Id-Version: McLuhan 2.13.0\n"
+"Project-Id-Version: McLuhan 2.14.0\n"
 "Report-Msgid-Bugs-To: https://github.com/pressbooks/pressbooks-book/\n"
-"POT-Creation-Date: 2021-09-28T23:01:19+00:00\n"
+"POT-Creation-Date: 2021-11-23T20:40:22+00:00\n"
 "PO-Revision-Date: 2017-06-22 17:45+0000\n"
 "Last-Translator: Mustafa Bulun <mustafa.bulun@bizimajans.com>, 2020\n"
 "Language-Team: Turkish (Turkey) (https://www.transifex.com/pressbooks/teams/9194/tr_TR/)\n"
@@ -126,16 +126,24 @@ msgstr " %s için logo"
 msgid "Toggle Menu"
 msgstr "Toggle Menü"
 
-#: header.php:103 index.php:14 partials/content-cover-toc.php:3
+#: header.php:92
+msgid "Primary Navigation"
+msgstr ""
+
+#: header.php:102 partials/content-cover-toc.php:9
+msgid "Book Contents Navigation"
+msgstr ""
+
+#: header.php:105 index.php:14 partials/content-cover-toc.php:3
 msgid "Contents"
 msgstr "İçindekiler"
 
 #. translators: %s: the title of the book
-#: header.php:112
+#: header.php:114
 msgid "Go to the cover page of %s"
 msgstr " %s kapak sayfasına gidin"
 
-#: header.php:116 inc/helpers/namespace.php:226
+#: header.php:118 inc/helpers/namespace.php:226
 msgid "Buy"
 msgstr "Satın al"
 
@@ -260,7 +268,7 @@ msgid_plural "Contributors"
 msgstr[0] "Katkıda bulunan"
 msgstr[1] "Katkıda bulunanlar"
 
-#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:102
+#: inc/helpers/namespace.php:442 partials/content-cover-book-header.php:97
 #: partials/content-cover-book-info.php:67 single.php:35
 msgid "License"
 msgstr "Lisans"
@@ -281,7 +289,7 @@ msgstr "Yayımcı"
 msgid "Publication Date"
 msgstr "Yayın tarihi"
 
-#: inc/helpers/namespace.php:447 single.php:45
+#: inc/helpers/namespace.php:447 single.php:43
 msgid "Digital Object Identifier (DOI)"
 msgstr "Digital Object Identifier (DOI)"
 
@@ -299,39 +307,39 @@ msgstr "Hashtag"
 
 #. translators: %s: post title
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:484 inc/helpers/namespace.php:487
+#: inc/helpers/namespace.php:485 inc/helpers/namespace.php:488
 msgid "Previous: %s"
 msgstr "Önceki: %s"
 
 #. translators: %s: post title,
 #. translators: %s: post short title or title
-#: inc/helpers/namespace.php:494 inc/helpers/namespace.php:496
+#: inc/helpers/namespace.php:495 inc/helpers/namespace.php:497
 msgid "Next: %s"
 msgstr "Sonraki: %s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%s on"
 msgstr "%s de"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567
+#: inc/helpers/namespace.php:568
 msgid "%1$s at %2$s"
 msgstr "%1$s / %2$s"
 
 #. translators: %s: name of commenter, %1$s: date of comment, %2$s: time of
 #. comment
-#: inc/helpers/namespace.php:567 inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:568 inc/helpers/namespace.php:597
 msgid "(Edit)"
 msgstr "(Düzenle)"
 
-#: inc/helpers/namespace.php:570
+#: inc/helpers/namespace.php:571
 msgid "Your comment is awaiting moderation."
 msgstr "Yorumunuz onay bekliyor."
 
-#: inc/helpers/namespace.php:596
+#: inc/helpers/namespace.php:597
 msgid "Pingback:"
 msgstr "Geri ping at: "
 
@@ -392,7 +400,7 @@ msgid "Purchase on  <a href=\"%1$s\">apple.com</a>"
 msgstr "Satın al <a href=\"%1$s\">apple.com</a>"
 
 #. translators: %1$s: url to purchase
-#: page-buy.php:50
+#: page-buy.php:49
 msgid "Purchase here:"
 msgstr "Buradan satın al:"
 
@@ -451,7 +459,7 @@ msgid "View h5p activity"
 msgstr ""
 
 #: page.php:13 partials/content-single-legacy.php:69
-#: partials/content-single.php:84
+#: partials/content-single.php:90
 msgid "Edit"
 msgstr "Editle"
 
@@ -477,16 +485,16 @@ msgstr "%s için kapak görseli"
 msgid "Download this book"
 msgstr "Bu kitabı indirin"
 
-#: partials/content-cover-book-header.php:98
+#: partials/content-cover-book-header.php:93
 #: partials/content-cover-book-info.php:6
 msgid "Book Description"
 msgstr "Kitap Açıklaması"
 
-#: partials/content-cover-book-header.php:110
+#: partials/content-cover-book-header.php:105
 msgid "Read Book"
 msgstr "Kitap oku"
 
-#: partials/content-cover-book-header.php:117
+#: partials/content-cover-book-header.php:112
 msgid "Buy Book"
 msgstr "Kitap Satın Al"
 
@@ -643,6 +651,6 @@ msgstr "Kitapta ara &hellip;"
 msgid "Search"
 msgstr "Ara"
 
-#: single.php:61
+#: single.php:59
 msgid "Share This Book"
 msgstr "Bu Kitabı Paylaş"
diff --git a/packages/aetna/package-lock.json b/packages/aetna/package-lock.json
index f2bf81dfc..cab66cd45 100644
--- a/packages/aetna/package-lock.json
+++ b/packages/aetna/package-lock.json
@@ -11655,9 +11655,9 @@
       }
     },
     "nth-check": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.0.0.tgz",
-      "integrity": "sha512-i4sc/Kj8htBrAiH1viZ0TgU8Y5XqCaV/FziYK6TBczxmeKm3AEFWqqF3195yKudrarqy7Zu80Ra5dobFjn9X/Q==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.0.1.tgz",
+      "integrity": "sha512-it1vE95zF6dTT9lBsYbxvqh0Soy4SPowchj0UBGj/V6cTPnXXtQOPUbhZ6CmGzAD/rW22LQK6E96pcdJXk4A4w==",
       "dev": true,
       "requires": {
         "boolbase": "^1.0.0"
diff --git a/packages/buckram/CHANGELOG.md b/packages/buckram/CHANGELOG.md
index 5a079c7be..d380ae43c 100644
--- a/packages/buckram/CHANGELOG.md
+++ b/packages/buckram/CHANGELOG.md
@@ -1,4 +1,13 @@
 # Changelog
+## 1.7.0
+### Minor changes
+- Update semantic selectors to match Pressbooks changes [#887](https://github.com/pressbooks/pressbooks-book/pull/887/files)
+
+### Dependencies
+- Bump puppeteer to 11.0.0 [#890](https://github.com/pressbooks/pressbooks-book/pull/890)
+- Bump mocha to 9.1.3 [#882](https://github.com/pressbooks/pressbooks-book/pull/882)
+- Bump nth-check to 2.0.1 [#893](https://github.com/pressbooks/pressbooks-book/pull/893)
+
 ## 1.6.0
 ### Minor changes
 - Add variables for new contributor feature
diff --git a/packages/buckram/assets/styles/buckram.scss b/packages/buckram/assets/styles/buckram.scss
index 962667e76..43516c688 100644
--- a/packages/buckram/assets/styles/buckram.scss
+++ b/packages/buckram/assets/styles/buckram.scss
@@ -1,5 +1,5 @@
 /*
  * Name: Buckram
- * Version: 1.6.0
+ * Version: 1.7.0
  * Description: Opinionated SCSS components for books (web, EPUB and PDF).
  */
diff --git a/packages/buckram/assets/styles/components/_colors.scss b/packages/buckram/assets/styles/components/_colors.scss
index 9aca88c10..215abc212 100644
--- a/packages/buckram/assets/styles/components/_colors.scss
+++ b/packages/buckram/assets/styles/components/_colors.scss
@@ -125,7 +125,7 @@ p.wp-caption-text {
 }
 
 // TITLE PAGE(S) COLOR
-#half-title-page > h1.title {
+#half-title-page > .title {
   color: if-map-get($half-title-title-color, $type);
 }
 
@@ -150,7 +150,7 @@ p.wp-caption-text {
 }
 
 // FRONT MATTER COLOR
-h1.front-matter-title {
+.front-matter-title {
   color: if-map-get($front-matter-title-color, $type);
 }
 
@@ -167,11 +167,11 @@ h1.front-matter-title {
 }
 
 // PART TITLE COLOR
-h3.part-number {
+.part-number {
   color: if-map-get($part-number-color, $type);
 }
 
-h1.part-title {
+.part-title {
   color: if-map-get($part-title-color, $type);
 }
 
@@ -181,15 +181,15 @@ h1.part-title {
   color: if-map-get($chapter-number-color, $type);
 }
 
-h2.chapter-title {
+.chapter-title {
   color: if-map-get($chapter-title-color, $type);
 }
 
-h2.chapter-subtitle {
+.chapter-subtitle {
   color: if-map-get($chapter-subtitle-color, $type);
 }
 
-h2.chapter-author {
+.chapter-author {
   color: if-map-get($chapter-author-color, $type);
 }
 
@@ -198,7 +198,7 @@ h2.chapter-author {
 }
 
 // BACK MATTER TITLE COLOR
-h1.back-matter-title {
+.back-matter-title {
   color: if-map-get($back-matter-title-color, $type);
 }
 
diff --git a/packages/buckram/assets/styles/components/pages/_titles.scss b/packages/buckram/assets/styles/components/pages/_titles.scss
index c3c1d2696..c5dfb9175 100644
--- a/packages/buckram/assets/styles/components/pages/_titles.scss
+++ b/packages/buckram/assets/styles/components/pages/_titles.scss
@@ -9,7 +9,7 @@
   display: if-map-get($title-half-title-display, $type);
 }
 
-#half-title-page > h1.title {
+#half-title-page > .title {
   margin-top: if-map-get($title-half-title-block-margin-top, $type);
   font-family: $title-half-title-font-family;
   font-size: if-map-get($title-half-title-font-size, $type);
@@ -23,7 +23,7 @@
 }
 
 // Title Page
-h1.title {
+.title {
   margin-top: if-map-get($title-title-margin-top, $type);
   margin-right: if-map-get($title-title-margin-right, $type);
   margin-left: if-map-get($title-title-margin-left, $type);
@@ -57,7 +57,7 @@ h1.title {
   }
 }
 
-h2.subtitle {
+.subtitle {
   margin-top: if-map-get($title-subtitle-margin-top, $type);
   margin-right: if-map-get($title-subtitle-margin-right, $type);
   margin-left: if-map-get($title-subtitle-margin-left, $type);
@@ -77,7 +77,7 @@ h2.subtitle {
   }
 }
 
-h3.author {
+.author {
   margin-top: if-map-get($title-author-margin-top, $type);
   margin-right: if-map-get($title-author-margin-right, $type);
   margin-left: if-map-get($title-author-margin-left, $type);
@@ -90,6 +90,7 @@ h3.author {
   word-spacing: $title-author-word-spacing;
   text-align: $title-author-align;
   text-transform: $title-author-text-transform;
+  text-indent: 0;
   border-bottom: if-map-get($title-author-border-bottom-width, $type) $title-author-border-bottom-style if-map-get($title-author-border-bottom-color, $type);
   padding-bottom: if-map-get($title-author-padding-bottom, $type);
   @if $type != 'epub' {
@@ -108,7 +109,7 @@ div.publisher-logo {
   text-align: $title-publisher-logo-text-align;
 }
 
-h4.publisher {
+.publisher {
   display: block;
   float: if-map-get($title-publisher-float, $type);
   margin: if-map-get($title-publisher-margin-top, $type) if-map-get($title-publisher-margin-right, $type) if-map-get($title-publisher-margin-bottom, $type) if-map-get($title-publisher-margin-left, $type);
@@ -124,11 +125,12 @@ h4.publisher {
   word-spacing: $title-publisher-word-spacing;
   text-align: $title-publisher-align;
   text-transform: $title-publisher-text-transform;
+  text-indent: 0;
   border-bottom: if-map-get($title-publisher-border-bottom-width, $type) $title-publisher-border-bottom-style if-map-get($title-publisher-border-bottom-color, $type);
   padding-bottom: if-map-get($title-publisher-padding-bottom, $type);
 }
 
-h5.publisher-city {
+.publisher-city {
   float: if-map-get($title-publisher-city-float, $type);
   margin-top: 0;
   margin-left: if-map-get($title-publisher-city-margin-left, $type);
@@ -145,11 +147,12 @@ h5.publisher-city {
   word-spacing: $title-publisher-city-word-spacing;
   text-align: $title-publisher-city-align;
   text-transform: $title-publisher-city-text-transform;
+  text-indent: 0;
   border-bottom: if-map-get($title-publisher-city-border-bottom-width, $type) $title-publisher-city-border-bottom-style if-map-get($title-publisher-city-border-bottom-color, $type);
   padding-bottom: if-map-get($title-publisher-city-padding-bottom, $type);
 }
 
-// Prince and EPUB-specific disply rules
+// Prince and EPUB-specific display rules
 @mixin titles-prince {
   #title-page {
     > .subtitle,
@@ -168,40 +171,40 @@ h5.publisher-city {
 
 @if $type == 'epub' {
   @media amzn-kf8 {
-    #title-page h1.title::before {
+    #title-page .title::before {
       content: '';
     }
 
-    #title-page h1.title::after {
+    #title-page .title::after {
       content: '';
     }
   }
 
   @media amzn-mobi {
-    h1.title {
+    .title {
       margin-top: 2em;
       font-size: 2em;
       font-style: normal;
       font-weight: normal;
     }
 
-    h2.subtitle {
+    .subtitle {
       font-size: 1em;
       font-style: normal;
       font-weight: normal;
     }
 
-    h3.author {
+    .author {
       font-style: normal;
       font-weight: normal;
     }
 
-    h4.publisher {
+    .publisher {
       font-style: normal;
       font-weight: normal;
     }
 
-    h5.publisher-city {
+    .publisher-city {
       font-style: normal;
       font-weight: normal;
     }
diff --git a/packages/buckram/assets/styles/components/section-titles/_back-matter.scss b/packages/buckram/assets/styles/components/section-titles/_back-matter.scss
index 96dd3a070..038a5a8d8 100644
--- a/packages/buckram/assets/styles/components/section-titles/_back-matter.scss
+++ b/packages/buckram/assets/styles/components/section-titles/_back-matter.scss
@@ -12,7 +12,7 @@
       display: none;
     }
 
-    h1.back-matter-title {
+    .back-matter-title {
       display: block;
       margin-top: if-map-get($back-matter-title-margin-top, $type);
       margin-bottom: 0;
@@ -46,7 +46,7 @@
       }
     }
 
-    h2.chapter-subtitle {
+    .chapter-subtitle {
       display: block;
       margin-bottom: 0;
       font-family: $section-subtitle-font-family;
@@ -63,7 +63,7 @@
       word-spacing: if-map-get($section-subtitle-word-spacing, $type);
     }
 
-    h2.chapter-author {
+    .chapter-author {
       display: block;
       margin-bottom: if-map-get($section-author-margin-bottom, $type);
       font-family: $section-author-font-family;
@@ -78,25 +78,25 @@
       word-spacing: if-map-get($section-author-word-spacing, $type);
     }
 
-    h1.back-matter-title + h2.chapter-subtitle,
-    .short-title + h2.chapter-subtitle {
+    .back-matter-title + .chapter-subtitle,
+    .short-title + .chapter-subtitle {
       margin-top: if-map-get($section-title-subtitle-spacing, $type);
     }
 
-    h1.back-matter-title + h2.chapter-author,
-    .short-title + h2.chapter-author {
+    .back-matter-title + .chapter-author,
+    .short-title + .chapter-author {
       margin-top: if-map-get($section-title-author-spacing, $type);
     }
 
-    h2.chapter-subtitle + h2.chapter-author {
+    .chapter-subtitle + .chapter-author {
       margin-top: if-map-get($section-subtitle-author-spacing, $type);
     }
 
-    h1.back-matter-title:last-child {
+    .back-matter-title:last-child {
       margin-bottom: if-map-get($back-matter-title-margin-bottom, $type);
     }
 
-    h2.chapter-subtitle:last-child {
+    .chapter-subtitle:last-child {
       margin-bottom: if-map-get($section-subtitle-margin-bottom, $type);
     }
   }
@@ -104,7 +104,7 @@
 
 @if $type == 'epub' {
   @media amzn-mobi {
-    h2.back-matter-title {
+    .back-matter-title {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.3em;
diff --git a/packages/buckram/assets/styles/components/section-titles/_chapters.scss b/packages/buckram/assets/styles/components/section-titles/_chapters.scss
index f28ff6f0a..31c49dede 100644
--- a/packages/buckram/assets/styles/components/section-titles/_chapters.scss
+++ b/packages/buckram/assets/styles/components/section-titles/_chapters.scss
@@ -8,7 +8,7 @@
   .chapter-title-wrap {
     margin: if-map-get($section-header-margin-top, $type) if-map-get($section-header-margin-right, $type) if-map-get($section-header-margin-bottom, $type) if-map-get($section-header-margin-left, $type);
 
-    h2.chapter-title {
+    .chapter-title {
       border-bottom: if-map-get($chapter-title-border-bottom-width, $type) $chapter-title-border-bottom-style if-map-get($chapter-title-border-bottom-color, $type);
       padding-bottom: if-map-get($chapter-title-padding-bottom, $type);
       display: $chapter-title-display;
@@ -82,7 +82,7 @@
       }
     }
 
-    h2.chapter-subtitle {
+    .chapter-subtitle {
       display: block;
       margin-bottom: 0;
       font-family: $section-subtitle-font-family;
@@ -99,7 +99,7 @@
       word-spacing: if-map-get($section-subtitle-word-spacing, $type);
     }
 
-    h2.chapter-author {
+    .chapter-author {
       display: block;
       margin-bottom: if-map-get($section-author-margin-bottom, $type);
       font-family: $section-author-font-family;
@@ -114,25 +114,25 @@
       word-spacing: if-map-get($section-author-word-spacing, $type);
     }
 
-    h2.chapter-title + h2.chapter-subtitle,
-    .short-title + h2.chapter-subtitle {
+    .chapter-title + .chapter-subtitle,
+    .short-title + .chapter-subtitle {
       margin-top: if-map-get($section-title-subtitle-spacing, $type);
     }
 
-    h2.chapter-title + h2.chapter-author,
-    .short-title + h2.chapter-author {
+    .chapter-title + .chapter-author,
+    .short-title + .chapter-author {
       margin-top: if-map-get($section-title-author-spacing, $type);
     }
 
-    h2.chapter-subtitle + h2.chapter-author {
+    .chapter-subtitle + .chapter-author {
       margin-top: if-map-get($section-subtitle-author-spacing, $type);
     }
 
-    h2.chapter-title:last-child {
+    .chapter-title:last-child {
       margin-bottom: if-map-get($section-title-margin-bottom, $type);
     }
 
-    h2.chapter-subtitle:last-child {
+    .chapter-subtitle:last-child {
       margin-bottom: if-map-get($section-subtitle-margin-bottom, $type);
     }
   }
@@ -177,7 +177,7 @@ blockquote.aphorism {
       margin-bottom: 0;
     }
 
-    h3.chapter-number {
+    .chapter-number {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.2em;
@@ -186,7 +186,7 @@ blockquote.aphorism {
       text-align: center;
     }
 
-    h2.chapter-title {
+    .chapter-title {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.5em;
@@ -195,7 +195,7 @@ blockquote.aphorism {
       text-align: center;
     }
 
-    h2.chapter-subtitle {
+    .chapter-subtitle {
       margin-top: 0.5em;
       margin-bottom: 0.5em;
       font-size: 0.9em;
@@ -204,7 +204,7 @@ blockquote.aphorism {
       text-align: center;
     }
 
-    h2.chapter-author {
+    .chapter-author {
       margin-top: 0.5em;
       margin-bottom: 0.5em;
       font-size: 0.8em;
@@ -215,11 +215,11 @@ blockquote.aphorism {
   }
 
   @media amzn-kf8 {
-    .chapter-title-wrap h2.chapter-title::before {
+    .chapter-title-wrap .chapter-title::before {
       content: '';
     }
 
-    .chapter-title-wrap h2.chapter-title::after {
+    .chapter-title-wrap .chapter-title::after {
       content: '';
     }
   }
diff --git a/packages/buckram/assets/styles/components/section-titles/_front-matter.scss b/packages/buckram/assets/styles/components/section-titles/_front-matter.scss
index ded40c9fa..d55e3d660 100644
--- a/packages/buckram/assets/styles/components/section-titles/_front-matter.scss
+++ b/packages/buckram/assets/styles/components/section-titles/_front-matter.scss
@@ -12,7 +12,7 @@
       display: none;
     }
 
-    h1.front-matter-title {
+    .front-matter-title {
       display: block;
       margin-top: if-map-get($front-matter-title-margin-top, $type);
       margin-bottom: 0;
@@ -46,7 +46,7 @@
       }
     }
 
-    h2.chapter-subtitle {
+    .chapter-subtitle {
       display: block;
       margin-bottom: 0;
       font-family: $section-subtitle-font-family;
@@ -63,7 +63,7 @@
       word-spacing: if-map-get($section-subtitle-word-spacing, $type);
     }
 
-    h2.chapter-author {
+    .chapter-author {
       display: block;
       margin-bottom: if-map-get($section-author-margin-bottom, $type);
       font-family: $section-author-font-family;
@@ -78,25 +78,25 @@
       word-spacing: if-map-get($section-author-word-spacing, $type);
     }
 
-    h1.front-matter-title + h2.chapter-subtitle,
-    .short-title + h2.chapter-subtitle {
+    .front-matter-title + .chapter-subtitle,
+    .short-title + .chapter-subtitle {
       margin-top: if-map-get($section-title-subtitle-spacing, $type);
     }
 
-    h1.front-matter-title + h2.chapter-author,
-    .short-title + h2.chapter-author {
+    .front-matter-title + .chapter-author,
+    .short-title + .chapter-author {
       margin-top: if-map-get($section-title-author-spacing, $type);
     }
 
-    h2.chapter-subtitle + h2.chapter-author {
+    .chapter-subtitle + .chapter-author {
       margin-top: if-map-get($section-subtitle-author-spacing, $type);
     }
 
-    h1.front-matter-title:last-child {
+    .front-matter-title:last-child {
       margin-bottom: if-map-get($front-matter-title-margin-bottom, $type);
     }
 
-    h2.chapter-subtitle:last-child {
+    .chapter-subtitle:last-child {
       margin-bottom: if-map-get($section-subtitle-margin-bottom, $type);
     }
   }
@@ -137,7 +137,7 @@
 
 @if $type == 'epub' {
   @media amzn-mobi {
-    h1.front-matter-title {
+    .front-matter-title {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.4em;
diff --git a/packages/buckram/assets/styles/components/section-titles/_parts.scss b/packages/buckram/assets/styles/components/section-titles/_parts.scss
index eb009b50f..baa31af68 100644
--- a/packages/buckram/assets/styles/components/section-titles/_parts.scss
+++ b/packages/buckram/assets/styles/components/section-titles/_parts.scss
@@ -71,7 +71,7 @@
 
 @if $type == 'epub' {
   @media amzn-mobi {
-    h3.part-number {
+    .part-number {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.3em;
@@ -80,7 +80,7 @@
       text-align: center;
     }
 
-    h1.part-title {
+    .part-title {
       margin-top: 1em;
       margin-bottom: 1em;
       font-size: 1.4em;
diff --git a/packages/buckram/assets/styles/components/toc/_generic.scss b/packages/buckram/assets/styles/components/toc/_generic.scss
index bbecfe467..3afb7837a 100644
--- a/packages/buckram/assets/styles/components/toc/_generic.scss
+++ b/packages/buckram/assets/styles/components/toc/_generic.scss
@@ -33,14 +33,10 @@
       text-indent: 0;
     }
 
-    .chapter-subtitle {
-      hyphens: none;
-      text-indent: 0;
-    }
-
-    .chapter-author {
+    .chapter-subtitle, .chapter-author {
       hyphens: none;
       text-indent: 0;
+      color: inherit;
     }
 
     .chapter-license {
@@ -219,12 +215,6 @@
 }
 
 @if $type == 'prince' {
-  h3.front-matter-number,
-  h3.part-number,
-  h3.chapter-number,
-  h3.back-matter-number {
-    bookmark-level: none;
-  }
 
   #toc {
     display: $toc-display;
diff --git a/packages/buckram/assets/styles/variables/_pages.scss b/packages/buckram/assets/styles/variables/_pages.scss
index d7b3d1a72..614fc1593 100644
--- a/packages/buckram/assets/styles/variables/_pages.scss
+++ b/packages/buckram/assets/styles/variables/_pages.scss
@@ -255,7 +255,7 @@ $title-subtitle-line-height: $title-title-line-height !default;
 
 // Author
 
-/// Top margin for title page author on elements `<h3>` with a class of `author`.
+/// Top margin for title page author on elements with a class of `author`.
 /// @type String | Map
 $title-author-margin-top: (
   epub: 2em,
@@ -263,21 +263,21 @@ $title-author-margin-top: (
   web: 2em
 ) !default;
 
-/// Right margin for title page author on elements `<h3>` with a class of `author`.
+/// Right margin for title page author on elements with a class of `author`.
 /// @type String | Map
 /// @since 1.0.0
 $title-author-margin-right: 0 !default;
 
-/// Left margin for title page author on elements `<h3>` with a class of `author`.
+/// Left margin for title page author on elements with a class of `author`.
 /// @type String | Map
 /// @since 1.0.0
 $title-author-margin-left: 0 !default;
 
-/// Font stack for title page author on elements `<h3>` with a class of `author`.
+/// Font stack for title page author on elements with a class of `author`.
 /// @type String
 $title-author-font-family: $font-2 !default;
 
-/// Font size for title page author on elements `<h3>` with a class of `author`.
+/// Font size for title page author on elements with a class of `author`.
 /// @type String | Map
 $title-author-font-size:(
   epub: 1em,
@@ -285,27 +285,27 @@ $title-author-font-size:(
   web: 1em
 ) !default;
 
-/// Font style for title page author on elements `<h3>` with a class of `author`.
+/// Font style for title page author on elements with a class of `author`.
 /// @type String
 $title-author-font-style: normal !default;
 
-/// Font weight for title page author on elements `<h3>` with a class of `author`.
+/// Font weight for title page author on elements with a class of `author`.
 /// @type String
 $title-author-font-weight: normal !default;
 
-/// Letter spacing for title page author on elements `<h3>` with a class of `author`.
+/// Letter spacing for title page author on elements with a class of `author`.
 /// @type String
 $title-author-letter-spacing: 1px !default;
 
-/// Word spacing for title page author on elements `<h3>` with a class of `author`.
+/// Word spacing for title page author on elements with a class of `author`.
 /// @type String
 $title-author-word-spacing: 2px !default;
 
-/// Text alignment for title page author on elements `<h3>` with a class of `author`.
+/// Text alignment for title page author on elements with a class of `author`.
 /// @type String
 $title-author-align: center !default;
 
-/// Text transform for title page author on elements `<h3>` with a class of `author`.
+/// Text transform for title page author on elements with a class of `author`.
 /// @type String
 $title-author-text-transform: none !default;
 
@@ -366,64 +366,64 @@ $title-publisher-logo-margin-left: auto !default;
 
 // Publisher
 
-/// Top margin for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Top margin for title page publisher text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
-$title-publisher-margin-top: (epub: 0, prince: 0, web: 0) !default;
+$title-publisher-margin-top: (epub: 1.5em, prince: 1.5em, web: 0) !default;
 
-/// Right margin for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Right margin for title page publisher text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
 $title-publisher-margin-right: (epub: 0, prince: 0, web: 0) !default;
 
-/// Bottom margin for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Bottom margin for title page publisher text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
 $title-publisher-margin-bottom: (epub: 0.5em, prince: 0.5em, web: 0.5em) !default;
 
-/// Left margin for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Left margin for title page publisher text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
 $title-publisher-margin-left: (epub: 0, prince: 0, web: 0) !default;
 
-/// Float for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Float for title page publisher text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.4.0
 $title-publisher-float: (epub: none, prince: none, web: none) !default;
 
-/// Font stack for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Font stack for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-font-family: $font-3 !default;
 
-/// Font size for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Font size for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-font-size: 0.9em !default;
 
-/// Font style for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Font style for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-font-style: normal !default;
 
-/// Font weight for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Font weight for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-font-weight: normal !default;
 
-/// Line height for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Line height for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-line-height: 1em !default;
 
-/// Letter spacing for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Letter spacing for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-letter-spacing: 1px !default;
 
-/// Word spacing for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Word spacing for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-word-spacing: 2px !default;
 
-/// Text transform for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Text transform for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-align: center !default;
 
-/// Text transform for title page publisher text on elements `<h4>` with a class of `publisher`.
+/// Text transform for title page publisher text on elements with a class of `publisher`.
 /// @type String
 $title-publisher-text-transform: none !default;
 
@@ -449,54 +449,54 @@ $title-publisher-padding-bottom: $title-title-padding-bottom !default;
 
 // Publisher city
 
-/// Right margin for title page publisher city text on elements `<h4>` with a class of `publisher`.
+/// Right margin for title page publisher city text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
 $title-publisher-city-margin-right: $title-publisher-margin-right !default;
 
-/// Left margin for title page publisher city text on elements `<h4>` with a class of `publisher`.
+/// Left margin for title page publisher city text on elements with a class of `publisher`.
 /// @type String | Map
 /// @since 1.2.0
 $title-publisher-city-margin-left: $title-publisher-margin-left !default;
 
-/// Float for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Float for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String | Map
 /// @since 1.4.0
 $title-publisher-city-float: (epub: none, prince: none, web: none) !default;
 
-/// Font stack for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Font stack for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-font-family: $font-3 !default;
 
-/// Font size for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Font size for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-font-size: 0.9em !default;
 
-/// Font style for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Font style for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-font-style: normal !default;
 
-/// Font weight for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Font weight for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-font-weight: normal !default;
 
-/// Line height for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Line height for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-line-height: 1em !default;
 
-/// Letter spacing for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Letter spacing for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-letter-spacing: 1px !default;
 
-/// Word spacing for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Word spacing for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-word-spacing: 2px !default;
 
-/// Alignment for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Alignment for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-align: center !default;
 
-/// Text transform for title page publisher city text on elements `<h5>` with a class of `publisher-city`.
+/// Text transform for title page publisher city text on elements with a class of `publisher-city`.
 /// @type String
 $title-publisher-city-text-transform: uppercase !default;
 
diff --git a/packages/buckram/package-lock.json b/packages/buckram/package-lock.json
index 66c9af1ef..1a8c350fe 100644
--- a/packages/buckram/package-lock.json
+++ b/packages/buckram/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "buckram",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -6500,9 +6500,9 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+          "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
           "dev": true
         },
         "is-fullwidth-code-point": {
@@ -6512,23 +6512,23 @@
           "dev": true
         },
         "string-width": {
-          "version": "4.2.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz",
-          "integrity": "sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==",
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+          "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
           "dev": true,
           "requires": {
             "emoji-regex": "^8.0.0",
             "is-fullwidth-code-point": "^3.0.0",
-            "strip-ansi": "^6.0.0"
+            "strip-ansi": "^6.0.1"
           }
         },
         "strip-ansi": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+          "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
           "dev": true,
           "requires": {
-            "ansi-regex": "^5.0.0"
+            "ansi-regex": "^5.0.1"
           }
         }
       }
@@ -13386,17 +13386,23 @@
         "minimist": "0.0.8"
       }
     },
+    "mkdirp-classic": {
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz",
+      "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==",
+      "dev": true
+    },
     "mocha": {
-      "version": "9.1.1",
-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-9.1.1.tgz",
-      "integrity": "sha512-0wE74YMgOkCgBUj8VyIDwmLUjTsS13WV1Pg7l0SHea2qzZzlq7MDnfbPsHKcELBRk3+izEVkRofjmClpycudCA==",
+      "version": "9.1.3",
+      "resolved": "https://registry.npmjs.org/mocha/-/mocha-9.1.3.tgz",
+      "integrity": "sha512-Xcpl9FqXOAYqI3j79pEtHBBnQgVXIhpULjGQa7DVb0Po+VzmSIK9kanAiWLHoRR/dbZ2qpdPshuXr8l1VaHCzw==",
       "dev": true,
       "requires": {
         "@ungap/promise-all-settled": "1.1.2",
         "ansi-colors": "4.1.1",
         "browser-stdout": "1.3.1",
         "chokidar": "3.5.2",
-        "debug": "4.3.1",
+        "debug": "4.3.2",
         "diff": "5.0.0",
         "escape-string-regexp": "4.0.0",
         "find-up": "5.0.0",
@@ -13407,12 +13413,11 @@
         "log-symbols": "4.1.0",
         "minimatch": "3.0.4",
         "ms": "2.1.3",
-        "nanoid": "3.1.23",
+        "nanoid": "3.1.25",
         "serialize-javascript": "6.0.0",
         "strip-json-comments": "3.1.1",
         "supports-color": "8.1.1",
         "which": "2.0.2",
-        "wide-align": "1.1.3",
         "workerpool": "6.1.5",
         "yargs": "16.2.0",
         "yargs-parser": "20.2.4",
@@ -13420,9 +13425,9 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+          "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
           "dev": true
         },
         "ansi-styles": {
@@ -13477,9 +13482,9 @@
           "dev": true
         },
         "debug": {
-          "version": "4.3.1",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
-          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
+          "version": "4.3.2",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.2.tgz",
+          "integrity": "sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==",
           "dev": true,
           "requires": {
             "ms": "2.1.2"
@@ -13569,6 +13574,12 @@
           "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
           "dev": true
         },
+        "nanoid": {
+          "version": "3.1.25",
+          "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.25.tgz",
+          "integrity": "sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==",
+          "dev": true
+        },
         "p-limit": {
           "version": "3.1.0",
           "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-3.1.0.tgz",
@@ -13594,23 +13605,23 @@
           "dev": true
         },
         "string-width": {
-          "version": "4.2.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz",
-          "integrity": "sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==",
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+          "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
           "dev": true,
           "requires": {
             "emoji-regex": "^8.0.0",
             "is-fullwidth-code-point": "^3.0.0",
-            "strip-ansi": "^6.0.0"
+            "strip-ansi": "^6.0.1"
           }
         },
         "strip-ansi": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+          "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
           "dev": true,
           "requires": {
-            "ansi-regex": "^5.0.0"
+            "ansi-regex": "^5.0.1"
           }
         },
         "strip-json-comments": {
@@ -13749,10 +13760,37 @@
       }
     },
     "node-fetch": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
-      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==",
-      "dev": true
+      "version": "2.6.5",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.5.tgz",
+      "integrity": "sha512-mmlIVHJEu5rnIxgEgez6b9GgWXbkZj5YZ7fx+2r94a2E+Uirsp6HsPTPlomfdHtpt/B0cdKviwkoaM6pyvUOpQ==",
+      "dev": true,
+      "requires": {
+        "whatwg-url": "^5.0.0"
+      },
+      "dependencies": {
+        "tr46": {
+          "version": "0.0.3",
+          "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+          "integrity": "sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=",
+          "dev": true
+        },
+        "webidl-conversions": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+          "integrity": "sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE=",
+          "dev": true
+        },
+        "whatwg-url": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+          "integrity": "sha1-lmRU6HZUYuN2RNNib2dCzotwll0=",
+          "dev": true,
+          "requires": {
+            "tr46": "~0.0.3",
+            "webidl-conversions": "^3.0.0"
+          }
+        }
+      }
     },
     "node-forge": {
       "version": "0.10.0",
@@ -13927,9 +13965,9 @@
       }
     },
     "nth-check": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.0.0.tgz",
-      "integrity": "sha512-i4sc/Kj8htBrAiH1viZ0TgU8Y5XqCaV/FziYK6TBczxmeKm3AEFWqqF3195yKudrarqy7Zu80Ra5dobFjn9X/Q==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/nth-check/-/nth-check-2.0.1.tgz",
+      "integrity": "sha512-it1vE95zF6dTT9lBsYbxvqh0Soy4SPowchj0UBGj/V6cTPnXXtQOPUbhZ6CmGzAD/rW22LQK6E96pcdJXk4A4w==",
       "dev": true,
       "requires": {
         "boolbase": "^1.0.0"
@@ -16421,29 +16459,29 @@
       }
     },
     "puppeteer": {
-      "version": "10.4.0",
-      "resolved": "https://registry.npmjs.org/puppeteer/-/puppeteer-10.4.0.tgz",
-      "integrity": "sha512-2cP8mBoqnu5gzAVpbZ0fRaobBWZM8GEUF4I1F6WbgHrKV/rz7SX8PG2wMymZgD0wo0UBlg2FBPNxlF/xlqW6+w==",
+      "version": "11.0.0",
+      "resolved": "https://registry.npmjs.org/puppeteer/-/puppeteer-11.0.0.tgz",
+      "integrity": "sha512-6rPFqN1ABjn4shgOICGDBITTRV09EjXVqhDERBDKwCLz0UyBxeeBH6Ay0vQUJ84VACmlxwzOIzVEJXThcF3aNg==",
       "dev": true,
       "requires": {
-        "debug": "4.3.1",
+        "debug": "4.3.2",
         "devtools-protocol": "0.0.901419",
         "extract-zip": "2.0.1",
         "https-proxy-agent": "5.0.0",
-        "node-fetch": "2.6.1",
+        "node-fetch": "2.6.5",
         "pkg-dir": "4.2.0",
-        "progress": "2.0.1",
+        "progress": "2.0.3",
         "proxy-from-env": "1.1.0",
         "rimraf": "3.0.2",
-        "tar-fs": "2.0.0",
-        "unbzip2-stream": "1.3.3",
-        "ws": "7.4.6"
+        "tar-fs": "2.1.1",
+        "unbzip2-stream": "1.4.3",
+        "ws": "8.2.3"
       },
       "dependencies": {
         "debug": {
-          "version": "4.3.1",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
-          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
+          "version": "4.3.2",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.2.tgz",
+          "integrity": "sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==",
           "dev": true,
           "requires": {
             "ms": "2.1.2"
@@ -16494,12 +16532,6 @@
             "find-up": "^4.0.0"
           }
         },
-        "progress": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.1.tgz",
-          "integrity": "sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==",
-          "dev": true
-        },
         "rimraf": {
           "version": "3.0.2",
           "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
@@ -20066,15 +20098,15 @@
       "dev": true
     },
     "tar-fs": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.0.0.tgz",
-      "integrity": "sha512-vaY0obB6Om/fso8a8vakQBzwholQ7v5+uy+tF3Ozvxv1KNezmVQAiWtcNmMHFSFPqL3dJA8ha6gdtFbfX9mcxA==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.1.tgz",
+      "integrity": "sha512-V0r2Y9scmbDRLCNex/+hYzvp/zyYjvFbHPNgVTKfQvVrb6guiE/fxP+XblDNR011utopbkex2nM4dHNV6GDsng==",
       "dev": true,
       "requires": {
         "chownr": "^1.1.1",
-        "mkdirp": "^0.5.1",
+        "mkdirp-classic": "^0.5.2",
         "pump": "^3.0.0",
-        "tar-stream": "^2.0.0"
+        "tar-stream": "^2.1.4"
       }
     },
     "tar-stream": {
@@ -20593,9 +20625,9 @@
       }
     },
     "unbzip2-stream": {
-      "version": "1.3.3",
-      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.3.3.tgz",
-      "integrity": "sha512-fUlAF7U9Ah1Q6EieQ4x4zLNejrRvDWUYmxXUpN3uziFYCHapjWFaCAnreY9bGgxzaMCFAPPpYNng57CypwJVhg==",
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz",
+      "integrity": "sha512-mlExGW4w71ebDJviH16lQLtZS32VKqsSfk80GCfUlwT/4/hNRFsoscrF/c++9xinkMzECL1uL9DDwXqFWkruPg==",
       "dev": true,
       "requires": {
         "buffer": "^5.2.1",
@@ -22168,15 +22200,6 @@
       "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
       "dev": true
     },
-    "wide-align": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
-      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
-      "dev": true,
-      "requires": {
-        "string-width": "^1.0.2 || 2"
-      }
-    },
     "widest-line": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-2.0.1.tgz",
@@ -22270,9 +22293,9 @@
       },
       "dependencies": {
         "ansi-regex": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+          "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
           "dev": true
         },
         "ansi-styles": {
@@ -22306,23 +22329,23 @@
           "dev": true
         },
         "string-width": {
-          "version": "4.2.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.2.tgz",
-          "integrity": "sha512-XBJbT3N4JhVumXE0eoLU9DCjcaF92KLNqTmFCnG1pf8duUxFGwtP6AD6nkjw9a3IdiRtL3E2w3JDiE/xi3vOeA==",
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+          "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
           "dev": true,
           "requires": {
             "emoji-regex": "^8.0.0",
             "is-fullwidth-code-point": "^3.0.0",
-            "strip-ansi": "^6.0.0"
+            "strip-ansi": "^6.0.1"
           }
         },
         "strip-ansi": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
-          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+          "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
           "dev": true,
           "requires": {
-            "ansi-regex": "^5.0.0"
+            "ansi-regex": "^5.0.1"
           }
         }
       }
@@ -22354,9 +22377,9 @@
       }
     },
     "ws": {
-      "version": "7.4.6",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
+      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
       "dev": true
     },
     "x-is-string": {
@@ -22557,9 +22580,9 @@
       },
       "dependencies": {
         "camelcase": {
-          "version": "6.2.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-6.2.0.tgz",
-          "integrity": "sha512-c7wVvbw3f37nuobQNtgsgG9POC9qMbNuMQmTCqZv23b6MIz0fcYpBiOlv9gEN/hdLdnZTDQhg6e9Dq5M1vKvfg==",
+          "version": "6.2.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-6.2.1.tgz",
+          "integrity": "sha512-tVI4q5jjFV5CavAU8DXfza/TJcZutVKo/5Foskmsqcm0MsL91moHvwiGNnqaa2o6PF/7yT5ikDRcVcl8Rj6LCA==",
           "dev": true
         },
         "decamelize": {
diff --git a/packages/buckram/package.json b/packages/buckram/package.json
index e683dc172..330b04844 100644
--- a/packages/buckram/package.json
+++ b/packages/buckram/package.json
@@ -1,6 +1,6 @@
 {
   "name": "buckram",
-  "version": "1.6.0",
+  "version": "1.7.0",
   "description": "Opinionated SCSS components for books (web, EPUB and PDF).",
   "scripts": {
     "build": "composer install && composer test",
@@ -30,7 +30,7 @@
     "pixelmatch": "^5.2.1",
     "polyserve": "^0.27.15",
     "pressbooks-build-tools": "^3.0.1",
-    "puppeteer": "^10.2.0",
+    "puppeteer": "^11.0.0",
     "sassdoc": "^2.7.1",
     "type-detect": "^4.0.8"
   },
diff --git a/packages/buckram/tests/features/images/large-captioned/index.html b/packages/buckram/tests/features/images/large-captioned/index.html
index a979aa99a..c2e3625d0 100644
--- a/packages/buckram/tests/features/images/large-captioned/index.html
+++ b/packages/buckram/tests/features/images/large-captioned/index.html
@@ -11,7 +11,7 @@
   <div class="chapter standard"
        id="chapter-big-images-yes-captions">
     <div class="chapter-title-wrap">
-      <h3 class="chapter-number">3</h3>
+      <p class="chapter-number">3</p>
       <h2 class="chapter-title">Big Images – YES CAPTIONS!</h2>
     </div>
     <div class="ugc chapter-ugc">
diff --git a/page-buy.php b/page-buy.php
index 78a079c8a..e5977dc24 100644
--- a/page-buy.php
+++ b/page-buy.php
@@ -40,11 +40,10 @@
 						<li class="buy-kobo"><a href="<?php print $urls['kobo']; ?>" class="bookstore-logo-link logo"><img src="<?php bloginfo( 'template_directory' ); ?>/dist/images/kobo.png" width="54" height="29" alt="kobo-logo" title="Kobo"/></a><?php printf( __( 'Purchase on  <a href="%1$s">kobobooks.com</a>', 'pressbooks-book' ), $urls['kobo'] ); ?></li>
 					<?php endif; ?>
 
-						<?php if ( isset( $urls['ibooks'] ) && $urls['ibooks'] ) : ?>
+						<?php if ( isset( $urls['applebooks'] ) && $urls['applebooks'] ) : ?>
 							<?php /* translators: %1$s: url to purchase */ ?>
-						<li class="buy-ibooks"><a href="<?php print $urls['ibooks']; ?>" class="bookstore-logo-link logo"><img src="<?php bloginfo( 'template_directory' ); ?>/dist/images/ibooks.png" width="34" height="34" alt="ibooks-logo" title="iBook"/></a><?php printf( __( 'Purchase on  <a href="%1$s">apple.com</a>', 'pressbooks-book' ), $urls['ibooks'] ); ?></li>
+						<li class="buy-applebooks"><a href="<?php print $urls['applebooks']; ?>" class="bookstore-logo-link logo"><img src="<?php bloginfo( 'template_directory' ); ?>/dist/images/ibooks.png" width="34" height="34" alt="ibooks-logo" title="iBook"/></a><?php printf( __( 'Purchase on  <a href="%1$s">apple.com</a>', 'pressbooks-book' ), $urls['applebooks'] ); ?></li>
 					<?php endif; ?>
-
 						<?php if ( isset( $urls['otherservice'] ) && $urls['otherservice'] ) : ?>
 							<?php /* translators: %1$s: url to purchase */ ?>
 						<li class="buy-other"><?php _e( 'Purchase here:', 'pressbooks-book' ); ?> <a href="<?php print $urls['otherservice']; ?>"><?php print $urls['otherservice']; ?></a></li>
diff --git a/partials/content-cover-book-header.php b/partials/content-cover-book-header.php
index 51292c01e..f92a348db 100644
--- a/partials/content-cover-book-header.php
+++ b/partials/content-cover-book-header.php
@@ -84,11 +84,6 @@
 					</ul>
 				</div>
 			<?php } ?>
-				<?php if ( \PressbooksBook\Helpers\social_media_enabled() ) { ?>
-				<div class="book-header__share book-header__cover__share">
-					<?php echo \PressbooksBook\Helpers\share_icons(); ?>
-				</div>
-				<?php } ?>
 			</div>
 
 			<?php
diff --git a/partials/content-cover-book-info.php b/partials/content-cover-book-info.php
index b21d7c359..46b0b9ca0 100644
--- a/partials/content-cover-book-info.php
+++ b/partials/content-cover-book-info.php
@@ -83,6 +83,6 @@
 	</div>
 
 	<div class="block-toggle__cta">
-		<a class="block-toggle__cta__button button--circle--primary js-toggle-block"><svg><use href="#arrow-down"></svg><span class="screen-reader-text"><?php _e( 'Click for more information', 'pressbooks-book' ) ?></span></a>
+		<a class="block-toggle__cta__button button--circle--primary js-toggle-block"><svg><use href="#arrow-down" /></svg><span class="screen-reader-text"><?php _e( 'Click for more information', 'pressbooks-book' ) ?></span></a>
 	</div>
 </section>
diff --git a/partials/content-cover-metadata.php b/partials/content-cover-metadata.php
index 3a1df3d28..a51fa3354 100644
--- a/partials/content-cover-metadata.php
+++ b/partials/content-cover-metadata.php
@@ -60,6 +60,6 @@
 		?>
 	</div>
 	<div class="block-toggle__cta">
-		<a class="block-toggle__cta__button button--circle--primary js-toggle-block"><svg><use href="#arrow-down"></svg><span class="screen-reader-text"><?php _e( 'Click for more information', 'pressbooks-book' ) ?></span></a>
+		<a class="block-toggle__cta__button button--circle--primary js-toggle-block"><svg><use href="#arrow-down" /></svg><span class="screen-reader-text"><?php _e( 'Click for more information', 'pressbooks-book' ) ?></span></a>
 	</div>
 </section>
diff --git a/partials/content-cover-toc.php b/partials/content-cover-toc.php
index 3a758c9ba..a1adf50bc 100644
--- a/partials/content-cover-toc.php
+++ b/partials/content-cover-toc.php
@@ -1,11 +1,13 @@
 <section class="block block-toc">
 	<?php if ( pb_get_first_post_id() ) : ?>
 		<h2 class="block__title block-toc__title"><?php _e( 'Contents', 'pressbooks-book' ); ?></h2>
-		<div class="toc__toggle" aria-expanded="true">
+		<div class="toc__toggle" data-expanded="true">
 			<button id="show" class="button"><?php _e( 'Show All Contents', 'pressbooks-book' ); ?></button>
 			<button id="hide" class="button"><?php _e( 'Hide All Contents', 'pressbooks-book' ); ?></button>
 		</div>
-		<nav><?php include( locate_template( 'partials/content-toc.php' ) ); ?></nav>
+		<nav aria-labelledby="book-toc">
+			<p id="book-toc" class="screen-reader-text"><?php _e( 'Book Contents Navigation', 'pressbooks-book' ); ?></p>
+			<?php include( locate_template( 'partials/content-toc.php' ) ); ?></nav>
 		<?php
 	endif;
 	/**
diff --git a/partials/content-single.php b/partials/content-single.php
index 4f27e56d7..b5f3cc6c5 100644
--- a/partials/content-single.php
+++ b/partials/content-single.php
@@ -1,4 +1,4 @@
-<section data-type="<?php echo $datatype; ?>" <?php post_class( pb_get_section_type( $post ) ); ?>
+<section data-type="<?php echo $datatype; ?>" <?php post_class( pb_get_section_type( $post ) ); ?>>
 	<header>
 		<h1 class="entry-title">
 			<?php
@@ -72,7 +72,13 @@
 			<h2 class="about-authors"><?php echo sprintf( _n( '%s Author', '%s Authors', count( $chapter_contributors ), 'pressbooks' ), 'About the' ) ?></h2>
 			<?php
 			foreach ( $chapter_contributors as $contributor ) {
-				echo $blade_engine->render( 'posttypes.contributor', [ 'contributor' => $contributor ] );
+				echo $blade_engine->render(
+					'posttypes.contributor',
+					[
+						'contributor' => $contributor,
+						'key' => str_random(),
+					]
+				);
 			}
 			?>
 		</section>
diff --git a/single.php b/single.php
index 3f11a2355..27a23e9ce 100644
--- a/single.php
+++ b/single.php
@@ -33,25 +33,23 @@
 
 							<div class="block-reading-meta__subsection">
 								<h2 class="section__subtitle block-reading-meta__subtitle"><?php _e( 'License', 'pressbooks-book' ); ?></h2>
-								<?php if ( \PressbooksBook\Helpers\is_book_public() ) { ?>
-									<p>
-										<?php echo \PressbooksBook\Helpers\copyright_license( false ); ?>
-									</p>
-								<?php } ?>
 								<?php
+								if ( \PressbooksBook\Helpers\is_book_public() ) {
+									echo \PressbooksBook\Helpers\copyright_license( false );
+								}
 								$pb_section_doi = get_post_meta( $post->ID, 'pb_section_doi', true );
 								if ( $pb_section_doi ) {
 									?>
 									<h2 class="section__subtitle block-reading-meta__subtitle"><?php _e( 'Digital Object Identifier (DOI)', 'pressbooks-book' ); ?></h2>
 									<p>
 									<?php
-										/**
-										 * Filter the DOI resolver service URL (default: https://dx.doi.org).
-										 *
-										 * @since Pressbooks @ 5.6.0
-										 */
-										$doi_resolver = apply_filters( 'pb_doi_resolver', 'https://dx.doi.org' );
-										printf( '<a itemprop="sameAs" href="%1$s">%1$s</a>', trailingslashit( $doi_resolver ) . $pb_section_doi );
+									/**
+									 * Filter the DOI resolver service URL (default: https://dx.doi.org).
+									 *
+									 * @since Pressbooks @ 5.6.0
+									 */
+									$doi_resolver = apply_filters( 'pb_doi_resolver', 'https://dx.doi.org' );
+									printf( '<a itemprop="sameAs" href="%1$s">%1$s</a>', trailingslashit( $doi_resolver ) . $pb_section_doi );
 									?>
 									</p>
 								<?php } ?>
diff --git a/style.css b/style.css
index 43df02ec0..e81941657 100644
--- a/style.css
+++ b/style.css
@@ -6,7 +6,7 @@ Tags: Academic, Literary, Nonfiction, Textbook
 Author: Pressbooks (Book Oven Inc.)
 Author URI: https://pressbooks.com
 Copyright: 2011-2021 Pressbooks (Book Oven Inc.) <code@pressbooks.com>
-Version: 2.13.0
+Version: 2.14.0
 Text Domain: pressbooks-book
 License: GPL v3.0 or later
 GitHub Theme URI: pressbooks/pressbooks-book