20260923-0 HTML5 HTML5 HTML5 HTML5 2021-11-04 2008-01-22 HTML5 2021-11-25 2021-11-11 HyperText Mark-up Language 5 HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It is the fifth and last major HTML version that is a 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). text/html;type=html5 .htm .html html5 text/html HTML5 false HTML5 2008-01-22 HTML5 3150 true true