CSS Levels Up
summary
History and process are concrete: CSS splits into modules, over 50 modules by June 2012, CSS2.1 becomes Recommendation in 2011, and new Level 4 modules land independently. Level 4 proposes corner shapes and border-clip with fractional units, media queries adding luminosity (dim normal washed), image-set and using an HTML element as an image, and Selectors Level 4 (:matches(), parent selector). Selectors are furthest along and have implementable polyfills (tiny “s” selector library).
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chapters (9)
- 0:00Introduction
- 1:58CSS terminology and history
- 5:44Evolution of CSS versions
- 9:30The W3C standard process
- 15:43Future CSS level 4 features
- 20:47Luminosity media queries
- 22:37Image sets and element usage
- 24:31CSS selectors level four
- 28:31Conclusion and call to action
