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Abstract This specification defines methods for authors to extend and enhance various CSS features. CSS is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, etc. This is a public copy of the editors’ draft. It is provided for discussion only and may change at any moment. Its publication here does not imply endorsement of its contents by W3C

Editor's Draft 3 February 2014 This version: http://dev.w3.org/csswg/css3-page-template/ Latest version: http://www.w3.org/TR/css3-page-template/ Editor's draft: http://dev.w3.org/csswg/css3-page-template/ Feedback: www-style@w3.org with subject line “[css-page-template] … message topic …” (archives) Editors: Alan Stearns, Adobe Systems, Inc., stearns@adobe.com Copyright © 2014 W3C® (MIT, ERCIM, K

CSS Grid Layout Module Level 1 W3C Candidate Recommendation Draft, 12 May 2025 More details about this document This version: https://www.w3.org/TR/2025/CRD-css-grid-1-20250512/ Latest published version: https://www.w3.org/TR/css-grid-1/ Editor's Draft: https://drafts.csswg.org/css-grid-1/ History: https://www.w3.org/standards/history/css-grid-1/ Implementation Report: https://wpt.fyi/results/css/

CSS Exclusions Module Level 1 Editor’s Draft, 24 July 2024 More details about this document This version: https://drafts.csswg.org/css-exclusions/ Latest published version: https://www.w3.org/TR/css3-exclusions/ Previous Versions: https://www.w3.org/TR/2015/WD-css3-exclusions-20150115/ https://www.w3.org/TR/2013/WD-css3-exclusions-20130528/ Feedback: CSSWG Issues Repository Inline In Spec Editors:

CSS Regions Module Level 1 Editor’s Draft, 3 July 2025 More details about this document This version: https://drafts.csswg.org/css-regions/ Latest published version: https://www.w3.org/TR/css-regions-1/ Previous Versions: https://www.w3.org/TR/2014/WD-css-regions-1-20141009/ https://www.w3.org/TR/2014/WD-css3-regions-20140218/ Feedback: CSSWG Issues Repository Inline In Spec Editors: Rossen Atanas

Selectors Level 4 Editor’s Draft, 6 May 2025 More details about this document This version: https://drafts.csswg.org/selectors/ Latest published version: https://www.w3.org/TR/selectors-4/ Previous Versions: https://www.w3.org/TR/2022/WD-selectors-4-20220507/ https://www.w3.org/TR/2018/WD-selectors-4-20181121/ https://www.w3.org/TR/2018/WD-selectors-4-20180202/ https://www.w3.org/TR/2018/WD-select

CSS Viewport Module Level 1 W3C First Public Working Draft, 6 July 2025 More details about this document This version: https://www.w3.org/TR/2025/FPWD-css-viewport-1-20250706/ Latest published version: https://www.w3.org/TR/css-viewport-1/ Editor's Draft: https://drafts.csswg.org/css-viewport-1/ Previous Versions: https://www.w3.org/TR/2016/WD-css-device-adapt-1-20160329/ History: https://www.w3.o

CSS Text Module Level 3 Editor’s Draft, 8 July 2025 More details about this document This version: https://drafts.csswg.org/css-text-3/ Latest published version: https://www.w3.org/TR/css-text-3/ Previous Versions: https://www.w3.org/TR/2023/CRD-css-text-3-20230903/ Implementation Report: https://test.csswg.org/harness/results/css-text-3_dev/grouped/ Test Suites: http://test.csswg.org/suites/css3-

CSS Writing Modes Level 3 Editor’s Draft, 24 March 2025 More details about this document This version: https://drafts.csswg.org/css-writing-modes-3/ Latest published version: https://www.w3.org/TR/css-writing-modes-3/ Previous Versions: https://www.w3.org/TR/2019/REC-css-writing-modes-3-20191210/ Test Suite: http://test.csswg.org/suites/css-writing-modes-3_dev/nightly-unstable/ Feedback: CSSWG Iss

CSS Backgrounds Module Level 4 Editor’s Draft, 5 September 2025 More details about this document This version: https://drafts.csswg.org/css-backgrounds-4/ Issue Tracking: CSSWG Issues Repository Inline In Spec Editors: Bert Bos (W3C) Elika J. Etemad / fantasai (Apple) Lea Verou (Invited Expert) Sebastian Zartner (Invited Expert) Suggest an Edit for this Spec: GitHub Editor Not Ready For Implementa

CSS Ruby Annotation Layout Module Level 1 Editor’s Draft, 15 July 2024 More details about this document This version: https://drafts.csswg.org/css-ruby-1/ Latest published version: https://www.w3.org/TR/css-ruby-1/ Previous Versions: https://www.w3.org/TR/2021/WD-css-ruby-1-20211202/ https://www.w3.org/TR/2021/WD-css-ruby-1-20210310/ https://www.w3.org/TR/2020/WD-css-ruby-1-20200429/ https://www.w

W3C Recommendation 20 September 2018 This version: https://www.w3.org/TR/2018/REC-css-fonts-3-20180920/ Latest version: https://www.w3.org/TR/css-fonts-3/ Latest editor's draft: https://drafts.csswg.org/css-fonts/ Previous versions: https://www.w3.org/TR/2018/PR-css-fonts-3-20180814/ https://www.w3.org/TR/2018/CR-css-fonts-3-20180626/ https://www.w3.org/TR/2018/CR-css-fonts-3-20180315/ https://www

CSS Images Module Level 3 Editor’s Draft, 18 March 2025 More details about this document This version: https://drafts.csswg.org/css-images-3/ Latest published version: https://www.w3.org/TR/css-images-3/ Previous Versions: https://www.w3.org/TR/2019/CR-css-images-3-20191010/ https://www.w3.org/TR/2012/CR-css3-images-20120417/ Implementation Report: https://wpt.fyi/results/css/css-images?label=expe

CSS Flexible Box Layout Module Level 1 Editor’s Draft, 26 September 2025 More details about this document This version: https://drafts.csswg.org/css-flexbox/ Latest published version: https://www.w3.org/TR/css-flexbox-1/ Previous Versions: https://www.w3.org/TR/2018/CR-css-flexbox-1-20181119/ https://www.w3.org/TR/2018/CR-css-flexbox-1-20181108/ https://www.w3.org/TR/2017/CR-css-flexbox-1-20171019

CSS Animations Level 1 W3C Working Draft, 31 January 2025 More details about this document This version: https://www.w3.org/TR/2025/WD-css-animations-1-20250131/ Latest published version: https://www.w3.org/TR/css-animations-1/ Editor's Draft: https://drafts.csswg.org/css-animations/ Previous Versions: https://www.w3.org/TR/2018/WD-css-animations-1-20181011/ https://www.w3.org/TR/2017/WD-css-anima