2009/9/10 David Gerard <dger...@gmail.com>: > 2009/9/10 Jeremy Newman <jnew...@codeweavers.com>: > >> The reason I left the XHTML markup in was eventually the goal was to convert >> the entire website to XHTML. The only issue with leaving them in while still >> in HTML4/Transitional is that the pages do not pass W3C validation. I am >> still willing to live with non-valid working HTML to save some work down the >> road. > > XHTML is officially no longer developed - the future is HTML5, apparently.
XHTML 1.0 is essentially HTML as XML. Work on XHTML2 has stopped. HTML5 still supports the XML form (see http://www.w3.org/TR/html5/the-xhtml-syntax.html#the-xhtml-syntax) which supports XML namespaces (e.g. for MathML or SVG inline markup). - Reece
