4.01 isn't deprecated, shirley?
Xhtml support is patchy at best. You have to serve it with a content-type of text/html to make ie render it properly, which is wrong (if you're being anal).

xhtml and 4.01 strict are semantically very close, but 4.01 permits unclosed tags and forgives case errors, quoting inconsistencies etc.

Gah, you made me think, you bastard. *necks pint*
( N3d, Fri 8 Jul 2005, 19:59, archived)