W3C HTML5 Logo
An HTML5 Logo It stands strong and true, resilient and universal as the markup you write. It shines as bright and as bold as the forward-thinking, dedicated web developers you are. It's the standard's standard, a pennant for progress. And it certainly doesn't use tables for layout. We present an HTML5 logo. The Technology Imagination, meet implementation. HTML5 is the cornerstone of the W3C's ope
Timed Text Markup Language 1 (TTML1) (Third Edition)
W3C Recommendation 08 November 2018, edited in place 20 August 2020This version: https://www.w3.org/TR/2018/REC-ttml1-20181108/ Latest editor's draft:https://w3c.github.io/ttml1/index.htmlLatest version:https://www.w3.org/TR/ttml1/Previous version: https://www.w3.org/TR/2018/PR-ttml1-20181004/ Editors:Glenn Adams, SkynavPierre-Anthony Lemieux, MovieLabsContributing Authors:Michael Dolan, Invited E
Unicorn - W3C 統合検証サービス
Due to lack of resources to maintain the Unicorn project, W3C stopped providing this on-line service as of 31 March 2023. See 2023-02-15 W3C Homepage news. The source code is available on GitHub under the W3C Software license. Anyone can run it for themselves, fork it. Copyright © 2023 World Wide Web Consortium. W3C® liability, trademark and permissive license rules apply.
The W3C Mobile Checker
The alpha service of the new Mobile Checker has been retired. Be mobile friendly The Mobile Checker is a tool for Web developers who want to make their Web page or Web app work better on mobile devices. Learn more. Contribute Looking to contribute to Mobile Checker? There are many ways to get involved in its development. Please take a few minutes to read this document to understand how you can hel
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