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HTML5ãªã©ã®WebæŠ€è¡“ã®ç–å®šã‚’è¡Œã†World Wide Web Consortiumï¼ˆW3Cï¼‰ã¨ã€EPUB 3ãªã©é›»åæ›¸ç±ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã®å›½éš›æ¨™æº–ã‚’ä½œæˆã™ã‚‹International Digital Publishing Forumï¼ˆIDPFï¼šå›½éš›é›»åå‡ºç‰ˆãƒ•ã‚©ãƒ¼ãƒ©ãƒ ï¼‰ãŒã€çµ„ç¹”ã‚’çµ±åˆã™ã‚‹å¥‘ç´„ã‚’ç· çµã—ãŸã“ã¨ã‚’ç™ºè¡¨ã—ã¾ã—ãŸï¼ˆW3Cã¨IDPFæ£å¼çµ±åˆ - å‡ºç‰ˆã®æœªæ¥å½¢ã‚’æããƒãƒ¼ãƒ‰ãƒžãƒƒãƒ”ãƒ³ã‚° - W3cã®ãƒ—ãƒ¬ã‚¹ãƒªãƒªãƒ¼ã‚¹ï¼‰ã€‚ We are happy to announce IDPF and W3C have completed combination, embracing the roadmap for future of #publishing https://t.co/ZwhxgcEhKL pic.twitter.com/unAVniY5UW â€” W3C (@w3c) 2017å¹´2æœˆ1æ—¥ ä¸¡è€…
yamadar 2017/02/02
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Ready to check - Nu Html Checker
This tool is an ongoing experiment in better HTML checking, and its behavior rem ains subject to change Ready to check Checker InputShow sourceoutlineimage reportcheck error pagesUser-Agent Accept-Language
yamadar 2015/07/28
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yamadar 2015/02/19
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The W3C Markup Validation Service
Note: file upload may not work with Internet Explorer on some versions of Windows XP Service Pack 2, see our information page on the W3C QA Website. Validate by direct input Enter the Markup to validate: More Options
yamadar 2015/02/19
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yamadar 2011/11/28
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World Wide Web Consortium (W3C)
The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security. Working with stakeholders of the Web A range of organizations join the World Wide Web Consortium as Members to work with us to drive the direction of core web techno logies and exchange ideas with industry and resear
yamadar 2011/04/17
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yamadar 2011/04/17
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Unicorn - W3C çµ±åˆæ¤œè¨¼ã‚µãƒ¼ãƒ“ã‚¹
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 Â© 2023 World Wide Web Consortium. W3CÂ® liability, trademark and permissive license rules apply.
yamadar 2010/11/29
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CSS Fonts Module Level 3 (W3C Working Draft 23 August 2012)
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
yamadar 2010/04/15
*CSS3

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CSS Multi-column Layout Module Level 1 (W3C Working Draft, 5 October 2017)
CSS Multi-column Layout Module Level 1 W3C Candidate Recommendation Snapshot, 16 May 2024 More details about this document This version: https://www.w3.org/TR/2024/CR-css-multicol-1-20240516/ Latest published version: https://www.w3.org/TR/css-multicol-1/ Editor's Draft: https://drafts.csswg.org/css-multicol/ History: https://www.w3.org/standards/history/css-multicol-1/ Implementation Report: http
yamadar 2010/04/15
*CSS3

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Selectors Level 3
Selectors Level 3 W3C Recommendation 06 November 2018 This version: https://www.w3.org/TR/2018/REC-selectors-3-20181106/ Latest version: https://www.w3.org/TR/selectors-3/ Previous version: https://www.w3.org/TR/2018/PR-selectors-3-20180911/ Latest version of Selectors: https://www.w3.org/TR/selectors/ Editor's Draft https://drafts.csswg.org/selectors-3/ Feedback: File an issue on GitHub Editors:
yamadar 2010/04/15
*CSS3

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