showdownjs/test/functional/makehtml/cases/standard/github-style-codeblock-inside-quote.html

<blockquote>
<p>Define a function in javascript:</p>
<pre><code>function MyFunc(a) {
  var s = '`';
  }
</code></pre>
<blockquote>
<p>And some nested quote</p>
<pre><code class="html language-html">&lt;div&gt;HTML!&lt;/div&gt;
</code></pre>
</blockquote>
</blockquote>