HTML5 is the fifth revision of and currently the latest version of HTML (HyperText Markup Language). The fifth revision of HTML introduced many new syntactic features such as video, audio, canvas as well as section and article to name a few, with which the content of websites may be better ...
I've seen this site and this site, but that's a lot to digest. What are the main things about HTML5 that make it different/better than regular old (X)HTML/CSS?
The new HTML5/CSS3 (Web8!) stuff sounds cool! Should I start using it now or stick with css/xhtml wait until more browsers can use it?