<?xml version="1.0"?><!-- An atom feed example -->
<feedxmlns="http://www.w3.org/2005/Atom">
<entry>
<contenttype="xhtml">
<!-- Here we switch to a different namespace -->
<divxmlns="http://www.w3.org/1999/xhtml">
<p>I'm invincible!</p>
</div>
</content>
</entry>
</feed>