This is a page from the Cascading Style Sheets Working Group Blog. Some other places to find information are the “current work” page, the www-style mailing list, the Future of CSS syndicator, and the issue list on Github.
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.
url()
syntax definition to match grammar, specifically, drop the requirement to escape commas since implementations don’t require it and existing pages depend on that.a
and n
in an+b
for :nth-child()
. Comments and spaces allowed at other (token) boundaries.//
comments in CSS—nice to have, but too late to add. See follow-up comments on mailing list for why introducing this would be actively harmful.margin-top
is always the top margin even in other writing-modes.