HTML5
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W3C HTML5 Spec
This specification is available in the following formats: single page HTML , multipage HTML , web developer edition . This is revision $Revision: 1.5472 $. Copyright © 2011 W3C ® ( MIT , ERCIM , Keio ), All Rights Reserved. W3C liability , trademark and document use rules apply. The bulk of the text of this specification is also available in the WHATWG Web Applications 1.0 specification, under a license that permits reuse of the specification text. Abstract
HTML5