Fixed code styles and preview images.

themes/hermit_zola/sass/style.scss

@@ -42,7 +42,7 @@ pre tt {
 
 pre {
   max-height: 40em;
-  padding: 0.7em 1.1em;
+  padding: 0em;
   overflow: auto;
   overflow-y: auto;
   overflow-x: scroll;
@@ -67,7 +67,8 @@ pre {
   }
 
   code {
-    padding: 0;
+    display: block;
+    padding: 0.7em;
     margin: 0;
 
     table {
@@ -81,7 +82,6 @@ pre {
   }
 
   code[data-name] {
-    display: block;
     position: relative;
     padding-top: 2em !important;
 
@@ -91,10 +91,10 @@ pre {
       font-weight: bold;
       top: 0;
       left: 0;
-      padding-left: 1em;
+      padding-left: 0.7em;
       padding-top: 0.2em;
       width: 100%;
-      background-color: $midnightblue;
+      background-color: $highlight-grey;
       z-index: 1;
       color: $text;
     }