When handling XHMTL documents, Firefox complains "This XML file does not appear to have any style information associated with it. The document tree is shown below." if:
Content-Type: application/xhtml+xml
The xmlns attribute is spesificed:<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
.
Try another demo about Invalid XHTML.
22 April 2005, by faireal.net, All Right Left