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W3C CSS Activities

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Style sheets define how to display HTML element. CSS is a mechanism for adding style to Web pages.

CSS Tutorial

To learn more about CSS, read our CSS tutorial.

CSS Versions


CSS1 became a W3C Recommendation 17. December 1996.


CSS2 became a W3C Recommendation 11. January 1999. CSS2 has added support for media (printers and aural devices), downloadable fonts, element-positioning and tables.


CSS3 is about breaking CSS into smaller modules.

W3C CSS Specifications and Timeline

Specification Draft / Proposal Recommendation
CSS 1   17. Dec 1996
CSS 1 (Revised)   11. Jan 1999
CSS 2   12. May 1998
CSS 2.1 19. Jul 2007  
CSS 2 Mobile 08. Dec 2006  
CSS 2 TV 14. May 2003  
CSS 2 Print 13. Oct 2006  
CSS 3 23. May 2001  
CSS 3 Namespace 28. Aug 2006  
CSS 3 User Interface 11. May 2004  
CSS 3 Selectors 15. Des 2005  
CSS 3 Fonts 02. Aug 2002  
CSS 3 Web Fonts 02. Aug 2002  
CSS 3 Colors 14. May 2003  
CSS 3 TV 14. May 2003  
CSS 3 Backgrounds and borders 16. Feb 2005  
CSS 3 Text 06. Mar 2007  
CSS 3 Lists 07. Nov 2002  
CSS 3 Line 15. May 2002  
CSS 3 Box model 09. Aug 2007  
CSS 3 Multi column 06. Jun 2007  
CSS 3 Ruby 14. May 2003  
CSS 3 Border 16. Feb 2005  
CSS 3 Speech 16. Dec 2004  
CSS 3 Paged Media (PM) 10. Oct 2006  
CSS 3 Generated PM 04. May 2007  
CSS 3 Print 13. Oct 2006  
CSS 3 Values 19. Sep 2006  
CSS 3 Cascade 15. Dec 2005  
CSS 3 Advanced Layout 09. Aug 2007  
CSS 3 Media Queries 06. Jun 2007  

W3C Reference:

W3C CSS Home Page

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