The HTML5 profile attribute is a simple way for authors to define URLs and meanings for vocabularies used in an element and its descendants. It is based on and generalizes the HTML4 head element's profile attribute for all elements. Editors Tantek Çelik (http://tantek.com/) Manu Sporny (Bitmunk - Digital Bazaar, Inc.) copyright and patents statements apply. Status HTML5 profile attribute is a work