Open Standards Stories & Practices Tantek Çelik, Mozilla Web Standards Lead tantek.com • @t 1. CSS 2.1 1998 CSS 2 Proposed Recommendation joined W3C CSS working group learned to love the open web open free specs e.g. IETF & W3C contrast: ISO pay to view open free test suites e.g. W3C contrast: CalConnect pay to test valid test suites e.g. CSS WG contrast: invalid most 2004 W3C tests open verifiabl