Fix oppia#20749 Made the next lesson button visible (oppia#21161)

* Managing Issue oppia#20749

* fixed Linter Checks errors

* fixed Linter Checks errors #2

* fixed Linter Checks errors #3

* fixed Linter Checks errors #4

* fixed Linter Checks errors #5

* fixed Linter Checks errors #6

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Co-authored-by: Martin Šidlík <[email protected]>
Co-authored-by: Hardik Goyal <[email protected]>

Author: 3 people

core/templates/pages/exploration-player-page/learner-experience/conversation-skin.component.css

@@ -25,14 +25,15 @@ oppia-conversation-skin .supplemental-card-parent-container {
 .conversation-skin-next-lesson-wrapper {
   align-items: center;
   background-color: white;
-  bottom: 0;
   display: flex;
-  margin: 0 0 -68px 0;
+  flex-wrap: wrap;
+  justify-content: flex-end;
+  overflow: hidden;
   padding: 10px;
-  position: absolute;
-  right: 0;
+  position: relative;
   text-align: right;
   vertical-align: middle;
+  width: 100%;
 }
 
 .conversation-skin-next-lesson-text {