A Web page
The current version of HTML as per the W3C (World Wide Web Consortium) is 4.01, though HTML5 is currently in a draft phase. HTML5 implements features like video playback and drag and drop, which have previously relied on third party browser plug-ins such as Adobe Flash and Microsoft Silverlight.
MIME type: text/html
Learn more about .HTML files:
Visit the HTML5 specifications as per the W3C.
See answers to .HTML-related questions at ITKnowledgeExchange.com.
Bill Brogden reports on the impact of HTML5 on Web apps.