[css-gaps-1]: Add section for serializing column-rule shorthand and update separator of longhands #12201#13336

kbabbitt merged 9 commits into

w3c:mainw3c/csswg-drafts:mainfrom

oSamDavis:css-rule-shorthandoSamDavis/csswg-drafts-osd:css-rule-shorthandCopy head branch name to clipboard