Introduction
The W3C Recommendations

While the curriculum may be used separately from other W3C products, it does not stand alone:

• The W3C Web Content Accessibility Guidelines 1.0 is the definitive source for the material presented here. Accompanying the Guidelines are the Techniques for Web Content Accessibility Guidelines 1.0
• The W3C HTML 4.0 Recommendation is the definitive source for questions about HTML.
• The W3C Cascading Style Sheets (CSS1) Level 1 Specification
• The W3C Cascading Style Sheets, level 2 (CSS2) Specification

Always check the W3C Technical Reports and Publications page for the latest releases.