Merge branch 'bugfix/page-scrolling' into improvement/navigation-new

# Conflicts:
#	_layouts/default.html
#	assets/js/just-the-docs.js

_sass/code.scss

@@ -27,7 +27,6 @@ figure.highlight {
 
 .highlighter-rouge {
   margin-bottom: $sp-3;
-  overflow: hidden;
   border-radius: $border-radius;
 }
 

_sass/layout.scss

@@ -2,19 +2,6 @@
 // The basic two column layout
 //
 
-.page-wrap {
-  @include mq(md) {
-    position: absolute;
-    top: 0;
-    left: 0;
-    display: flex;
-    width: 100%;
-    height: 100%;
-    overflow-x: hidden;
-    overflow-y: hidden;
-  }
-}
-
 .side-bar {
   z-index: 100;
   display: flex;
@@ -23,7 +10,7 @@
 
   @include mq(md) {
     flex-wrap: nowrap;
-    position: absolute;
+    position: fixed;
     width: $nav-width-md;
     height: 100%;
     flex-direction: column;
@@ -37,23 +24,6 @@
   }
 }
 
-.main-wrap {
-  @include mq(md) {
-    position: absolute;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 100%;
-    -webkit-overflow-scrolling: touch;
-    overflow-x: hidden;
-    overflow-y: scroll;
-  }
-
-  &:focus {
-    outline: none;
-  }
-}
-
 .main {
   @include mq(md) {
     position: relative;