Fifth and previous version of hypertext markup language
HTML5 (Previous W3C Recommendation)
Filename extension
.html, .htm
Internet media type
text/html
Type code
TEXT
Uniform Type Identifier (UTI)
public.html[1]
Developed by
WHATWG
World Wide Web Consortium (W3C; formerly)
Initial release
22 January 2008 (16 years ago) (2008-01-22)[2]
Latest release
5.2 (Second revision) 14 December 2017 (6 years ago) (2017-12-14)[3]
Type of format
Markup language
Extended from
HTML4, XHTML1, DOM2 HTML
Extended to
HTML LS
Standard
HTML 5.2
Open format?
Yes
HTML
Dynamic HTML
HTML5
article
audio
canvas
video
XHTML
Basic
Mobile Profile
HTML element
meta
div and span
blink
marquee
HTML attribute
alt attribute
HTML frame
HTML editor
Character encodings
named characters
Unicode
Language code
Document Object Model
Browser Object Model
Style sheets
CSS
Font family
Web colors
JavaScript
WebCL
Web3D
WebGL
WebGPU
WebXR
W3C
Validator
WHATWG
Quirks mode
Web storage
Rendering engine
Comparisons
Document markup languages
Comparison of browser engines
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HTML5 (Hypertext Markup Language 5) is a markup language used for structuring and presenting hypertext documents on the World Wide Web. It was the fifth and final[4] major HTML version that is now a retired World Wide Web Consortium (W3C) recommendation. The current specification is known as the HTML Living Standard. It is maintained by the Web Hypertext Application Technology Working Group (WHATWG), a consortium of the major browser vendors (Apple, Google, Mozilla, and Microsoft).
HTML5 was first released in a public-facing form on 22 January 2008,[2] with a major update and "W3C Recommendation" status in October 2014.[5][6] Its goals were to improve the language with support for the latest multimedia and other new features; to keep the language both easily readable by humans and consistently understood by computers and devices such as web browsers, parsers, etc., without XHTML's rigidity; and to remain backward-compatible with older software. HTML5 is intended to subsume not only HTML 4 but also XHTML1 and even the DOM Level 2 HTML itself.[7]
HTML5 includes detailed processing models to encourage more interoperable implementations; it extends, improves, and rationalizes the markup available for documents and introduces markup and application programming interfaces (APIs) for complex web applications.[8] For the same reasons, HTML5 is also a candidate for cross-platform mobile applications because it includes features designed with low-powered devices in mind.
Many new syntactic features are included. To natively include and handle multimedia and graphical content, the new <video>, <audio> and <canvas> elements were added; expandable sections are natively implemented through <summary>...</summary> and <details>...</details> rather than depending on CSS or JavaScript; and support for scalable vector graphics (SVG) content and MathML for mathematical formulas was also added. To enrich the semantic content of documents, new page structure elements such as <main>, <section>, <article>, <header>, <footer>, <aside>, <nav>, and <figure> are added. New attributes were introduced, some elements and attributes were removed, and others such as <a>, <cite>, and <menu> were changed, redefined, or standardized. The APIs and Document Object Model (DOM) are now fundamental parts of the HTML5 specification,[8] and HTML5 also better defines the processing for any invalid documents.[9]
^"Mac Developer Library: System-Declared Uniform Type Identifiers". Apple. 17 November 2009.
^ abCite error: The named reference HTML5v1 was invoked but never defined (see the help page).
^Cite error: The named reference HTML52 History was invoked but never defined (see the help page).
^Cite error: The named reference W3C transfer ZDNet was invoked but never defined (see the help page).
^Cite error: The named reference finalars was invoked but never defined (see the help page).
^"HTML5 is a W3C recommendation". W3C Blog. World Wide Web Consortium. 28 October 2014. Retrieved 28 October 2014.
^"HTML5 Differences from HTML4". W3.org. W3C. Introduction. Retrieved 2 March 2018. HTML4 became a W3C Recommendation in 1997. While it continues to serve as a rough guide to many of the core features of HTML, it does not provide enough information to build implementations that interoperate with each other and, more importantly, with Web content. The same goes for XHTML1, which defines an XML serialization for HTML4, and DOM Level 2 HTML, which defines JavaScript APIs for both HTML and XHTML. HTML replaces these documents.
^ ab"HTML5 Differences from HTML4". W3.org. W3C. 19 October 2010. Retrieved 4 December 2010.
^"HTML 5.2 W3C Recommendation". W3.org. W3C. 14 December 2017. § 1.10.2 Syntax Errors. Retrieved 29 June 2017.
HTML5 (Hypertext Markup Language 5) is a markup language used for structuring and presenting hypertext documents on the World Wide Web. It was the fifth...
HTML5 Audio is a subject of the HTML5 specification, incorporating audio input, playback, and synthesis, as well as in the browser. iOS The <audio> element...
The HTML5 specification introduced the video element for the purpose of playing videos, partially replacing the object element. HTML5 video is intended...
HTML5 Boilerplate is an HTML, CSS and JavaScript template (or boilerplate) for creating HTML5 websites with cross-browser compatibility. "Changelog"....
AIR applications and HTML5 animation. In 2015, Google introduced Google Swiffy, a tool that converted Flash animation to HTML5, which Google used to...
the WHATWG renamed its "HTML5" living standard to "HTML". The W3C nevertheless continues its project to release HTML5. 2012 HTML5 – Candidate Recommendation...
HTML5. <u>...</u> In HTML 4, underlined text. Equivalent CSS: { text-decoration: underline; }. Deprecated in HTML 4.01. Restored in HTML5. In HTML5,...
their software platform used, with common examples being Flash games, and HTML5 games. Some browser games are also available as mobile apps, PC games, or...
An entity declaration is created in XML, SGML and HTML documents (before HTML5) by using the <!ENTITY name "value"> syntax in a Document type definition...
link relation registry, and rel="icon" was registered in 2010 based on the HTML5 specification. The popular <link rel="shortcut icon" type="image/png" href="image/favicon...
primarily intended to offer a royalty-free alternative to use in the HTML5 video and the HTML5 audio elements. It has a sister project, WebP, for images. The...
Modern HTML5 has feature-parity with the now-obsolete Adobe Flash. Both include features for playing audio and video within web pages. Flash was specifically...
HTML5 and allows for dynamic, scriptable rendering of 2D shapes and bitmap images. It is a low level, procedural model that updates a bitmap. HTML5 Canvas...
directly supported in HTML5, there are JavaScript implementations of MPEG-DASH which allow using MPEG-DASH in web browsers using the HTML5 Media Source Extensions...
HTML5 Article is a HTML5 semantic element, similar to <section> and <header>. It is most commonly used to contain information that may be distributed independently...
Specification (XPS) print pipeline. Internet Explorer 9 also supports the HTML5 video and audio tags and the Web Open Font Format. Development of Internet...
January 27, 2015, YouTube announced that HTML5 would be the default playback method on supported browsers. HTML5 video streams use Dynamic Adaptive Streaming...
such as "quirks mode" or "standards mode". The text/html serialization of HTML5, which is not SGML-based, uses the DOCTYPE only for mode selection. Since...
The cache manifest in HTML5 was a software storage feature which provided the ability to access a web application even without a network connection. It...
on macOS and Linux; OpenGL ES on Android and iOS, WebGL or 2d canvas on HTML5, and proprietary APIs on consoles. The engine's primary element is an IDE...
collaborate with the working group including: Robin Berjon (past editor for the HTML5 and DOM4 specifications) Marcos Cáceres Ian Devlin Steve Faulkner John Foliot...
HTML5 File API aspect provides an API for representing file objects in web applications and programmatic selection and accessing their data. In addition...
2011. "HTML5 test desktop". Visred. Retrieved March 19, 2015. "HTML5 test desktop browser comparison". Visred. Retrieved March 19, 2015. "HTML5 test Android...