ue using the
shorthand "#" selector syntax even if the user agent does not read
the DTD.</li>

<li>Within the XHTML name space, user agents are expected to
recognize the "class" attribute. Therefore, style sheets should be
able to continue using the shorthand "." selector syntax.</li>

<li>
CSS defines different conformance rules for HTML and XML documents;
be aware that the HTML rules apply to XHTML documents delivered as
HTML and the XML rules apply to XHTML documents delivered as XML.</li>
</ol>
<!--OddP