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Keith Cirkel edited this page Feb 13, 2026 · 1 revision

CSS Working Group Wiki

The CSS Working Group is the W3C working group chartered to develop Cascading Style Sheets (CSS). We are responsible both for the CSS specifications and for their conformance test suites. Our roadmap is maintained on the W3C website. fantasai has separately documented how we work.

This wiki is to help the CSSWG record resolutions and open issues, to share them with public, and to encourage public involvement in the development of CSS and its test suites. Contributions to this wiki are governed by the same conditions as the W3C Mobile Web Wiki Contribution Policy.

The CSS Working Group welcomes your feedback on our work! Public discussion of our specs happens in GitHub issues on the csswg-drafts, fxtf-drafts, and css-houdini-drafts repositories (corresponding to CSS drafts, FXTF drafts, and Houdini drafts) and on the archived www-style mailing list, while discussion of our test suites happens on public-css-testsuite. Minutes of our meetings and publishing updates are posted to the CSS WG Blog. See list of communications channels.

The working group uses the planning page to coordinate topics for our face-to-face meetings.

Note: This is an archival copy of the original CSSWG wiki.

Sections

  • FAQ - Why some commonly desired features keep being rejected / why some surprising things are the way they are
  • Specifications - Wiki pages for tracking spec-related thoughts
  • Ideas - Ideas not yet in a spec
  • Testing - Testing CSS
  • Tools - About our tools
  • Planning - Meeting plans and schedules
  • Wiki - Meta information about the wiki

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