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.
widows and orphans can only accept integers >=1 for CSS2.1 Issue 105.:lang() wording from Selectors draft for CSS2.1 Issue 68.box-shadow should work with border-image. Text should require using alpha channels of image to mask shadow and clipping inside padding box (outer shadows) or outside border box (inner shadows).