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 W3C has an annual Technical Plenary, during which all its working groups have face-to-face meetings in the same place. This gives groups a chance to have joint meetings to work out cross-working-group issues. Due to the way scheduling was handled this year, we only got two days of meetings whereas we usually have three.
The CSS Validator team requested a better definition of what a valid CSS document is in Level 3 and clearer indications that REC-CSS1 and REC-CSS2 are obsoleted.
We reviewed a new version of the table width calculation algorithm document. This text will be incorporated into a new CSS3 Tables module soon.
Agreed to publish an LC draft (after vertical text issues are addressed) with an extended public comment period to invite more feedback.