XHTML
Markup language which places HTML in XML form / From Wikipedia, the free encyclopedia
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Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages. It mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
| Filename extension |
.xhtml, .xht, .xml, .html, .htm |
|---|---|
| Internet media type |
application/xhtml+xml |
| Uniform Type Identifier (UTI) | public.XHTML |
| UTI conformation | public.xml |
| Developed by | World Wide Web Consortium (W3C) |
| Initial release | 26 January 2000 |
| Latest release | 5.0 28 October 2014 |
| Type of format | Markup language |
| Extended from | XML, HTML |
| Standard | W3C HTML5 (Recommendation) |
| Open format? | Yes |
| HTML |
|---|
| Comparisons |
While HTML, prior to HTML5, was defined as an application of Standard Generalized Markup Language (SGML), a flexible markup language framework, XHTML is an application of XML, a more restrictive subset of SGML. XHTML documents are well-formed and may therefore be parsed using standard XML parsers, unlike HTML, which requires a lenient HTML-specific parser.[1]
XHTML 1.0 became a World Wide Web Consortium (W3C) recommendation on 26 January 2000. XHTML 1.1 became a W3C recommendation on 31 May 2001. The standard known as XHTML5 is being developed as an XML adaptation of the HTML5 specification.[2][3]