HISTORY OF DEV

June 7, 2011

CSS 2.1 becomes a W3C Recommendation

The W3CWorld Wide Web Consortium — the international body that maintains core web standards. published CSSCascading Style Sheets — the language for layout, color, and typography on web pages. Level 2 Revision 1 as a Recommendation on June 7, 2011 — a corrected, interoperable snapshot of CSS2 after fifteen years of refinement.

What it was for

Cascading Style SheetsCSSCascading Style Sheets — the language for layout, color, and typography on web pages. 2.1 removed unimplementable CSS2 features, fixed specification errors, and reflected what browsers actually supported — backed by tens of thousands of test cases. It became the stable baseline the CSSCascading Style Sheets — the language for layout, color, and typography on web pages. Working Group built modular Level 3 specs on top of: selectors, flexbox, grid, and animations all trace back to this foundation.

People

  • Bert Bos — author
  • Håkon Wium Lie — author

Companies

  • W3C

Why it's here

CSSCascading Style Sheets — the language for layout, color, and typography on web pages. 2.1 ended years of spec drift and gave the web a stable styling baseline.

Why it mattered

It unlocked modular CSS3 development by freezing a reliable interoperability target.

What it solved

CSS2 contained errors and features no browser could implement consistently.

Media

  • Cascading Style Sheets
    ImageCascading Style Sheets

    daPhyre (File:CSS3 and HTML5 logos and wordmarks.svg) Elfi (File:CSS3 logo and wordmark.svg) ExE Boss, CC BY 3.0, via Wikimedia Commons

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