HTML and CSS Programming

• Organizations
  • Worldwide Web Consortium
  • W3 Schools
• Validation sites:
  • W3C Validation Service
  • CSS Validator
• HTML
  • HTML
  • HTML Wikipedia Article
  • HTML 4 Character Entities
  • HTML colors
  • HTML 4.01 spec
  • DHTML Examples
• HTML5
  • HTML5 Browser Test
  • HTML5 Spec
  • WHATWG
  • Modernizr
  • HTML5 Boilerplate
• CSS
  • CSS
  • CSS Wikipedia Article
  • HTML & CSS at O'Reilly
• Misc.
  • RSS Spec
  • Podcast specs