What is HTML? What Opens a HTML? File Format List from WhatIs.com

File Extension

HTML File Format

A Web page

HTML file format icon

HTML is a HyperText Markup Language file format used as the basis of a web page. HTML is a file extension used interchangeably with HTM. HTML is consists of tags surrounded by angle brackets. The HTML tags can be used to define headings, paragraphs, lists, links, quotes, and interactive forms. It can also be used to embed Javascript, and CSS (cascading style sheets). 

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.

This was last updated in July 2010
Editorial Director Margaret Rouse

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