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.
The CSS WG looked, among other things, at the stability of the Backgrounds and Borders module and an issue with replaced elements and ‘run-in’ in CSS 2.1.
There was also news about Selectors: after seeing the number of implementations, the Director agreed to give the specification Proposed Recommendation status. The review period will start in a few days.