Web Platform Design Principles
Web Platform Design Principles W3C Group Note, 24 February 2026 More details about this document This version: https://www.w3.org/TR/2026/NOTE-design-principles-20260224/ Latest published version: https://www.w3.org/TR/design-principles/ Editor's Draft: https://w3ctag.github.io/design-principles/ Previous Versions: https://www.w3.org/TR/2026/NOTE-design-principles-20260127/ History: https://www.w3
Standardize YouTube embed rewriting? · Issue #2390 · whatwg/html
Apparently chromium, Gecko and WebKit all have code for rewriting YouTube flash embeds to use HTML instead (so they work when flash is disabled, such as on mobile): Chromium: ChromeContentRendererClient::OverrideFlashEmbedWithHTML (discussion) Gecko: nsObjectLoadingContent::MaybeRewriteYoutubeEmbed (bug) WebKit: YouTubePluginReplacement If this is now effectively required for web compat, perhaps w
Infra Standard
Participate: GitHub whatwg/infra (new issue, open issues) Chat on Matrix Commits: GitHub whatwg/infra/commits Snapshot as of this commit @infrastandard Tests: web-platform-tests infra/ (ongoing work) Translations (non-normative): 日本語 简体中文 한국어 Abstract The Infra Standard aims to define the fundamental concepts upon which standards are built. Goals Deduplicate boilerplate in standards. Align standar
HTML Standard
Firefox4+Safari4+Chrome61+Opera52+Edge79+Edge (Legacy)16+Internet Explorer10+Firefox Android5+Safari iOS3.2+Chrome Android61+WebView Android61+Samsung Internet8.0+Opera Android47+ 4.10.1 Introduction This section is non-normative. A form is a component of a web page that has form controls, such as text, buttons, checkboxes, range, or color picker controls. A user can interact with such a form, pro
Worker modules · Issue #550 · whatwg/html
In the epic #443, we added <script type="module"> to allow execution of scripts using the ES Module syntactic goal and semantics. Previously, in https://www.w3.org/Bugs/Public/show_bug.cgi?id=22700, there was discussion of allowing modules to be the entry point for workers as well. That thread is pretty long though, and the worker-modules idea there was actually a tangent off of the original threa
Top | Diff of HTMLs
Unofficial diff viewer for WHATWG HTML Standard and W3C HTML. The Diff of HTMLs provides side-by-side diff view of each section between the specifications. Table of contents (TOCs) of the HTML specifications Legends: A section available at WHATWG HTML Standard. A section available at W3C HTML. Note: This site modifies TOCs to reduce unnecessary diffs. The following TOCs are not equal to the specif
ARIA in HTML
ARIA in HTML W3C Recommendation 15 April 2026 More details about this document This version: https://www.w3.org/TR/2026/REC-html-aria-20260415/ Latest published version: https://www.w3.org/TR/html-aria/ Latest editor's draft:https://w3c.github.io/html-aria/ History: https://www.w3.org/standards/history/html-aria/ Commit history Implementation report: https://w3c.github.io/html-aria/results/impleme
2015年のWeb標準 | gihyo.jp
株式会社ミツエーリンクスの渡邉卓です。昨年の「2014年のWeb標準」と同様に、2015年もWebコンテンツのフロントエンド設計および実装に関連した各種標準や、周辺領域の動きに関する短期的な予測を寄稿させていただきます。 2015年のWeb標準については「より広範なHTML5仕様の一般化・HTML5.1仕様の利用増加」「ECMAScript 6仕様の利用増加」「IE7・IE8 未サポートWebサイト増加」をキーワードとして取りあげます。 より広範なHTML5仕様の一般化・HTML5.1仕様の利用増加 2014年10月28日、ついにHTML5がW3C勧告 (Recommendation) となりました。すでに多方面で利用されているHTML5仕様ですが、勧告になったことで、今まで利用を躊躇していた方々にも確実に浸透していくと予想できます。詳細は後述しますが、現役のWebブラウザでありながら
Plan 2014
Introduction The HTML Working Group has made much progress on HTML5 and related specifications. The HTML Working Group Chairs and the Protocols and Formats WG Chair have been asked by the W3C Team to provide a credible plan to get HTML5 to Recommendation status by 2014. Challenges remain in achieving this goal. We sought to produce a plan that achieves this date and that has minimal risk of delays
HTML�5 differences from HTML�4
About this specification This specification is like no other — it has been processed with you, the humble web developer, in mind. The focus of this specification is readability and ease of access. Unlike the full HTML Standard, this "developer's edition" removes information that only browser vendors need know. It is automatically produced from the full specification by our build tooling, and thus
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Add import.meta.url by domenic · Pull Request #3141 · whatwg/html
Require utf-8 when specifying character encoding by sideshowbarker · Pull Request #3091 · whatwg/html
Add a [[IsHTMLDDA]] internal slot to document.all · Issue #3015 · whatwg/html
consider removing support for multiple in <input type=range> · Issue #1520 · whatwg/html
GitHub - whatwg/mimesniff: MIME Sniffing Standard
AMP - a web component framework to easily create user-first web experiences
Post Mortem, 100DaysOfSpec
GitHub - darobin/breakup: Breaking up is never easy, I know, but I haaaave tooooo go
GitHub - mozumder/HTML6: An HTML6 proposal for single-page apps without Javascript.
GitHub - whatwg/html: HTML Standard
