match the background of pre with code (the github theme of highlight.js defined the background of code to be #f8f8f8)

exampleSite/content/about.md

@@ -1,7 +1,6 @@
 ---
 title: About Hugo XMin
 author: Yihui Xie
-toc: true
 ---
 
 **XMin** is the first Hugo theme I have designed. The original reason that I wrote it was I needed a minimal example of Hugo themes when I was writing the  [**blogdown**](https://github.com/rstudio/blogdown) book. Basically I wanted a simple theme that supports a navigation menu, a home page, other single pages, lists of pages, blog posts, categories, tags, and RSS. That is all. Nothing fancy. In terms of CSS and JavaScript, I really want to keep them minimal. In fact, this theme does not contain any JavaScript code at all, although on this example website I did introduce some JavaScript code (still relatively simple anyway). The theme does not contain any images, either, and is pretty much a plain-text theme.

exampleSite/content/post/2017-06-22-rmd-toc.Rmd

@@ -1,26 +0,0 @@
----
-title: Show Table of Contents for R Markdown Posts
-date: '2017-06-22'
-slug: rmd-toc
-output:
-  blogdown::html_page:
-    toc: true
----
-
-# One Section
-
-A quick fox jumped over the lazy dog.
-
-![quick fox](https://slides.yihui.name/gif/quick-fox.gif)
-
-# Another Section
-
-A quick fox jumped over the lazy dog.
-
-## A subsection
-
-A quick fox jumped over the lazy dog.
-
-## Another subsection
-
-A quick fox jumped over the lazy dog.

exampleSite/content/post/2017-06-22-rmd-toc.html

@@ -1,40 +0,0 @@
----
-title: Show Table of Contents for R Markdown Posts
-date: '2017-06-22'
-slug: rmd-toc
-output:
-  blogdown::html_page:
-    toc: true
----
-
-
-<div id="TOC">
-<ul>
-<li><a href="#one-section">One Section</a></li>
-<li><a href="#another-section">Another Section</a><ul>
-<li><a href="#a-subsection">A subsection</a></li>
-<li><a href="#another-subsection">Another subsection</a></li>
-</ul></li>
-</ul>
-</div>
-
-<div id="one-section" class="section level1">
-<h1>One Section</h1>
-<p>A quick fox jumped over the lazy dog.</p>
-<div class="figure">
-<img src="https://slides.yihui.name/gif/quick-fox.gif" alt="quick fox" />
-<p class="caption">quick fox</p>
-</div>
-</div>
-<div id="another-section" class="section level1">
-<h1>Another Section</h1>
-<p>A quick fox jumped over the lazy dog.</p>
-<div id="a-subsection" class="section level2">
-<h2>A subsection</h2>
-<p>A quick fox jumped over the lazy dog.</p>
-</div>
-<div id="another-subsection" class="section level2">
-<h2>Another subsection</h2>
-<p>A quick fox jumped over the lazy dog.</p>
-</div>
-</div>

exampleSite/layouts/partials/foot_custom.html

@@ -2,3 +2,11 @@
 <script async src="//cdn.bootcss.com/mathjax/2.7.1/MathJax.js?config=TeX-MML-AM_CHTML"></script>
 
 <script async src="//yihui.name/js/center-img.js"></script>
+
+<script src="//cdn.bootcss.com/highlight.js/9.12.0/highlight.min.js"></script>
+<script src="//cdn.bootcss.com/highlight.js/9.12.0/languages/r.min.js"></script>
+
+<script>
+hljs.configure({languages: []});
+hljs.initHighlightingOnLoad();
+</script>

exampleSite/layouts/partials/head_custom.html

@@ -0,0 +1 @@
+<link href="//cdn.bootcss.com/highlight.js/9.12.0/styles/github.min.css" rel="stylesheet">

layouts/_default/single.html

@@ -5,10 +5,6 @@
 {{ if (gt .Params.date 0) }}<h2 class="date">{{ .Date.Format "2006/01/02" }}</h2>{{ end }}
 </div>
 
-{{ if .Params.toc }}
-{{ .TableOfContents }}
-{{ end }}
-
 <main>
 {{ .Content }}
 </main>

static/css/style.css

@@ -21,15 +21,12 @@ hr {
   border-style: dashed;
   color: #ddd;
 }
-#TableOfContents, #TOC {
-  border: 1px solid #eee;
-  border-radius: 5px;
-}
 
 /* code */
 pre {
   border: 1px solid #ddd;
   box-shadow: 5px 5px 5px #eee;
+  background: #f8f8f8;
   padding: 1em;
   overflow-x: auto;
 }