_sass/code.scss in just-the-docs-0.4.0.rc3 vs _sass/code.scss in just-the-docs-0.4.0.rc4

@@ -1,16 +1,19 @@
 // Code and syntax highlighting
 // stylelint-disable selector-no-qualifying-type, declaration-block-semicolon-newline-after,declaration-block-single-line-max-declarations, selector-no-type, selector-max-type, scss/comment-no-empty
 
 // {% raw %}
 
-code {
-  padding: 0.2em 0.15em;
-  font-weight: 400;
-  background-color: $code-background-color;
-  border: $border $border-color;
-  border-radius: $border-radius;
+// This instruction applies to all queues not within 'pre' or 'figure', avoiding 'code' generated by the highlight.
+:not(pre, figure) {
+  & > code {
+    padding: 0.2em 0.15em;
+    font-weight: 400;
+    background-color: $code-background-color;
+    border: $border $border-color;
+    border-radius: $border-radius;
+  }
 }
 
 // Avoid appearance of dark border around visited code links in Safari
 a:visited code {
   border-color: $border-color;
@@ -45,54 +48,111 @@
 //
 // No kramdown line_numbers: fences and Liquid highlighting look the same.
 // Kramdown line_numbers = true: fences have a wider gutter than with Liquid?
 
 // ```[LANG]...```
+
+// the code may appear with 3 different types:
+// container \ case:  default case,          code with line number,   code with html rendering
+// top level:         div.highlighter-rouge, figure.highlight,        figure.highlight
+// second level:      div.highlight,         div.table-wrapper,       pre.highlight
+// third level:       pre.highlight,         td.code,                 absent
+// last level:        code,                  pre,                     code (optionality)
+// highlighter level: span,                  span,                    span
+// the spacing are only in the second level for case 1, 3 and in the third level for case 2
+
+// select top level container
 div.highlighter-rouge,
-div.listingblock > div.content {
-  padding: $sp-3;
+div.listingblock > div.content,
+figure.highlight {
   margin-top: 0;
   margin-bottom: $sp-3;
-  overflow-x: auto;
   background-color: $code-background-color;
   border-radius: $border-radius;
   box-shadow: none;
   -webkit-overflow-scrolling: touch;
+  position: relative;
+  padding: 0;
 
-  div.highlight,
+  // copy button (or other button)
+  // the button appear only when there is a hover on the code or focus on button
+  > button {
+    width: $sp-3;
+    opacity: 0;
+    position: absolute;
+    top: 0;
+    right: 0;
+    border: $sp-3 solid $code-background-color;
+    background-color: $code-background-color;
+    color: $body-text-color;
+    box-sizing: content-box;
+
+    svg {
+      fill: $body-text-color;
+    }
+
+    &:active {
+      text-decoration: none;
+      outline: none;
+      opacity: 1;
+    }
+
+    &:focus {
+      opacity: 1;
+    }
+  }
+
+  // the button can be seen by doing a simple hover in the code, there is no need to go over the location of the button
+  &:hover {
+    > button {
+      cursor: copy;
+      opacity: 1;
+    }
+  }
+}
+
+// setting the spacing and scrollbar on the second level for the first case
+// remove all space on the second and thirt level
+div.highlighter-rouge,
+div.listingblock {
+  div.highlight {
+    overflow-x: auto;
+    padding: $sp-3;
+    margin: 0;
+    border: 0;
+  }
+
   pre.highlight,
   code {
     padding: 0;
     margin: 0;
     border: 0;
   }
 }
 
 // {% highlight LANG %}...{% endhighlight %},
 // {% highlight LANG linenos %}...{% endhighlight %}:
-figure.highlight {
-  padding: $sp-3;
-  margin-top: 0;
-  margin-bottom: $sp-3;
-  overflow-x: auto;
-  background-color: $code-background-color;
-  border-radius: $border-radius;
-  box-shadow: none;
-  -webkit-overflow-scrolling: touch;
 
+// setting the spacing and scrollbar on the second level for the thirt case
+// the css rule are apply only to the last code enviroment
+// setting the scroolbar
+figure.highlight {
   pre,
-  code {
-    padding: 0;
+  :not(pre) > code {
+    overflow-x: auto;
+    padding: $sp-3;
     margin: 0;
     border: 0;
   }
 }
 
 // ```[LANG]...```, kramdown line_numbers = true,
 // {% highlight LANG linenos %}...{% endhighlight %}:
+
+// setting the spacing and scrollbar on the thirt level for the second case
 .highlight .table-wrapper {
-  padding: 0;
+  padding: $sp-3 0;
   margin: 0;
   border: 0;
   box-shadow: none;
 
   td,
@@ -106,21 +166,19 @@
   }
 
   td.gl {
     width: 1em;
     padding-right: $sp-3;
+    padding-left: $sp-3;
   }
 
   pre {
     margin: 0;
     line-height: 2;
   }
 }
 
-//
-// Code examples (rendered)
-//
-
+// Code examples: html render of a code
 .code-example,
 .listingblock > .title {
   padding: $sp-3;
   margin-bottom: $sp-3;
   overflow: auto;