tt>.  Environments such as blockquotes,
lists, etc, that have a beginning and an end always use paired commands like
<tt>&lt;<i>blah</i>&gt;...&lt;<i>/blah</i>&gt;</tt>.

<p>
<blockquote>

This is a blockquote inside another blockquote, which shows how HTML
environments can be "nested".

</blockquote>
<p>

Here we are back in the first blockquote again.

</blockquote>
<p>

And here we are back outside of the first blockquote.

<p>
<hr>
<p>

<h3><a name="lists">6. Lists</a></h3>

Here is an Unordered (bullet