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.
summary
element a display list item and the disclosure is a list item. There was some strong objections to this decision; it was felt to be unfriendly to authors. Anyone who objects should contact WHATWG as it was their decision.