vendor/bundle/ruby/2.4.0/gems/kramdown-1.14.0/test/testcases/block/06_codeblock/with_lang_in_fenced_block.html

<pre><code class="language-ruby">def what?
  42
end
</code></pre>

<pre class="class1"><code class="language-ruby">def what?
  42
end
</code></pre>

<pre><code class="language-ruby">def what?
  42
end
</code></pre>

<pre class="language-python"><code class="language-ruby">def what?
  42
end
</code></pre>

<pre class="language-python"><code class="language-ruby">def what?
  42
end
</code></pre>