CSS Writing Modes Level 3 W3C Recommendation, 10 December 2019 This version: https://www.w3.org/TR/2019/REC-css-writing-modes-3-20191210/ Latest published version: https://www.w3.org/TR/css-writing-modes-3/ Editor's Draft: https://drafts.csswg.org/css-writing-modes-3/ Previous Versions: https://www.w3.org/TR/2019/PR-css-writing-modes-3-20191024/ https://www.w3.org/TR/2019/CR-css-writing-modes-3-20