diff --git a/bonzo.js b/bonzo.js
index 6327c7e..a1606cf 100644
--- a/bonzo.js
+++ b/bonzo.js
@@ -838,7 +838,7 @@
         var el = this[0]
           , de = el.ownerDocument.documentElement
           , bcr = el.getBoundingClientRect()
-          , scroll = getWindowScroll()
+          , scroll = getWindowScroll(el)
           , width = el.offsetWidth
           , height = el.offsetHeight
           , top = bcr.top + scroll.y - Math.max(0, de && de.clientTop, doc.body.clientTop)
@@ -1046,8 +1046,16 @@
     return element === win || (/^(?:body|html)$/i).test(element.tagName)
   }
 
-  function getWindowScroll() {
-    return { x: win.pageXOffset || html.scrollLeft, y: win.pageYOffset || html.scrollTop }
+  function getWindowScroll(el) {
+    var elBody, elHtml
+    if(el === undefined) {
+      elBody = doc.body,
+      elHtml = html;
+    } else {
+      elBody = el.ownerDocument.body,
+      elHtml = elBody.parentNode;
+    }
+    return { x: elBody.scrollLeft || elHtml.scrollLeft, y: elBody.scrollTop || elHtml.scrollTop }
   }
 
   function createScriptFromHtml(html) {
@@ -1060,7 +1068,8 @@
   /**
    * @param {Array.<Element>|Element|Node|string} els
    * @return {Bonzo}
-   */
+  */
+
   function bonzo(els) {
     return new Bonzo(els)
   }
diff --git a/bonzo.min.js b/bonzo.min.js
index 39caa23..a7521e7 100644
--- a/bonzo.min.js
+++ b/bonzo.min.js
@@ -3,4 +3,4 @@
   * https://github.com/ded/bonzo
   * License MIT
   */
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diff --git a/src/bonzo.js b/src/bonzo.js
index 32fbc54..f2818df 100644
--- a/src/bonzo.js
+++ b/src/bonzo.js
@@ -833,7 +833,7 @@
         var el = this[0]
           , de = el.ownerDocument.documentElement
           , bcr = el.getBoundingClientRect()
-          , scroll = getWindowScroll()
+          , scroll = getWindowScroll(el)
           , width = el.offsetWidth
           , height = el.offsetHeight
           , top = bcr.top + scroll.y - Math.max(0, de && de.clientTop, doc.body.clientTop)
@@ -1041,8 +1041,16 @@
     return element === win || (/^(?:body|html)$/i).test(element.tagName)
   }
 
-  function getWindowScroll() {
-    return { x: win.pageXOffset || html.scrollLeft, y: win.pageYOffset || html.scrollTop }
+  function getWindowScroll(el) {
+    var elBody, elHtml
+    if(el === undefined) {
+      elBody = doc.body,
+      elHtml = html;
+    } else {
+      elBody = el.ownerDocument.body,
+      elHtml = elBody.parentNode;
+    }
+    return { x: elBody.scrollLeft || elHtml.scrollLeft, y: elBody.scrollTop || elHtml.scrollTop }
   }
 
   function createScriptFromHtml(html) {
@@ -1055,7 +1063,8 @@
   /**
    * @param {Array.<Element>|Element|Node|string} els
    * @return {Bonzo}
-   */
+  */
+
   function bonzo(els) {
     return new Bonzo(els)
   }