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Html 5

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Html 5

HTML5
(HyperText Markup Language)
Filename extension .html
Internet media type text/html
Type code TEXT
Uniform Type Identifier public.html[1]
Developed by World Wide Web Consortium and WHATWG
Type of format Markup language
Extended to XHTML5
Open format? Yes
XHTML5
Filename extension .xhtml, .html
Internet media type application/xml, application/xhtml+xml
Developed by World Wide Web Consortium and WHATWG
Type of format Markup language
Extended from XML, HTML5
Open format? Yes

HTML5 is a markup language used for structuring and presenting content for the World Wide Web and a core technology of the Internet. It is the fifth revision of the HTML standard (created in 1990 and standardized as HTML 4 as of 1997)[2] and, as of December 2012, is a candidate recommendation of the World Wide Web Consortium (W3C).[3] Its core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but also XHTML 1 and DOM Level 2 HTML.[2]

Following its immediate predecessors HTML 4.01 and XHTML 1.1, HTML5 is a response to the fact that the HTML and XHTML in common use on the World Wide Web are a mixture of features introduced by various specifications, along with those introduced by software products such as web browsers, those established by common practice, and the many syntax errors in existing web documents.[4] It is also an attempt to define a single markup language that can be written in either HTML or XHTML syntax. It includes detailed processing models to encourage more interoperable implementations; it extends, improves and rationalises the markup available for documents, and introduces markup and application programming interfaces (APIs) for complex web applications.[5] For the same reasons, HTML5 is also a potential candidate for cross-platform mobile applications. Many features of HTML5 have been built with the consideration of being able to run on low-powered devices such as smartphones and tablets. In December 2011, research firm Strategy Analytics forecast sales of HTML5 compatible phones will top 1 billion in 2013.[6]

In particular, HTML5 adds many new syntactic features. These include the new , and elements, as well as the integration of scalable vector graphics (SVG) content (that replaces the uses of generic tags) and MathML for mathematical formulas. These features are designed to make it easy to include and handle multimedia and graphical content on the web without having to resort to proprietary plugins and APIs. Other new elements, such as
,
,
and



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