C. Cascading Style Sheets Reference

This appendix lists CSS 3 properties as defined by the W3C at w3.org/Style/CSS/current-work.

Work on CSS 2 began in the mid-1990s and was published as a standard in May 1998. Work on CSS 2.1 began shortly thereafter, with the goal of clarifying CSS 2 so that it was closer to what browser makers actually implemented. Unfortunately, what often happens to committees happened with the people working on the CSS 2.1 spec, and it wasn’t standardized until June 2011.

Work began on CSS 3 shortly after CSS 2 shipped. It involved breaking the original specification into modules so that no single part would hold up shipping other parts. It’s also suffered some pangs over the years, and as of this writing, only a few of ...

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