Advanced HTML – Dynamic HTML & Stylesheets

HTML Guru
If you want to see the best example we’ve come across of dhtml implementation, as well as learn more about how it is done, then you’ll definitely want to see this site.
Webmonkey’s DHTML Reference
Covers a full range of DHTML functionality, giving great examples along the way. Also be sure to check out their lesson on stylesheets.
Webdeveloper.com: Advanced HTML
Here is a huge resource for dynamic html, cascading style sheets, and other advanced web design techniques. If you have mastered html, then this site should be you next step.