s of <code>&gt;</code>:</p>

<pre><code>&gt; This is the first level of quoting.
&gt;
&gt; &gt; This is nested blockquote.
&gt;
&gt; Back to the first level.
</code></pre>

<p>Blockquotes can contain other Markdown elements, including headers, lists,
and code blocks:</p>

<pre><code>&gt; ## This is a header.
&gt;
&gt; 1.   This is the first list item.
&gt; 2.   This is the second list item.
&gt;
&gt; Here&apos;s some example code:
&gt;
&gt;     return shell_exec(&quot;echo $input | $markdown_script&quot;);
