Web Style Sheets
- W3C's authoritative overview of style sheets for the web.
- http://www.w3.org/Style/
JSSS: JavaScript-Based Style Sheets - Overview of Netscape's proposed JavaScript based style system. Historical. - http://www.w3.org/Submission/1996/1/WD-jsss-960822
CSS and XSL: which should I use? - Brief article from W3C with a diagram of the markup-to-presentation process for HTML and XML documents. - http://www.w3.org/Style/CSS-vs-XSL