title: HTML comments within comments?
body: <p>Is there a way to comment multiple lines... which already have some comments in them?</p>
  
  <p>i.e.</p>
  
  <pre><code>&lt;html&gt;
  &lt;!-- Multi-line comment begin
    &lt;head&gt;
      &lt;!-- This script does abcxyz --&gt;
      &lt;script&gt;...&lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
      Hello world!
    &lt;/body&gt;
  Multi-line comment end --&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>It seems that even SO's syntax hilighting won't accept this...</p>