Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.
The CSS Working Group has published an updated Working Draft of CSS Values and Units Level 3. This module describes the common values and units that CSS properties accept and the syntax used for describing them in CSS property definitions.
This update just clarifies a few minor points, including that CSS escaping syntax is interpreted when taking attribute values via
attr(). All significant changes since the first CR are listed changes section.
As always, please send any feedback to the (archived) public mailing list firstname.lastname@example.org with the spec code (
[css3-values]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)