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.
:has()
has received a lot of support on Microsoft’s uservoice.supports()
contain: paint
and overflow: clip
sideways-lr
and sideways-rl
in writing-mode
, but all the interested parties weren’t on the call, so a decision will occur on the mailing list.