HTML

HTML (Hypertext Markup Language)
An example of HTML code with syntax highlighting and line numbers
File extension:	.html, .htm
MIME type:	text/html
Type code:	TEXT
Uniform Type Identifier:	public.html
Developed by:	World Wide Web Consortium
Type of format:	Markup language
Extended to:	XHTML
Standard(s):	W3C HTML 4.01

HTML, short for Hypertext Markup Language, is the predominant markup language for the creation of web pages. It provides a means to describe the structure of text-based information in a document — by denoting certain text as headings, paragraphs, lists, and so on — and to supplement that text with interactive forms, embedded images, and other objects. HTML is written in the form of labels (known as tags), surrounded by less-than (<) and greater-than signs (>). HTML can also describe, to some degree, the appearance and semantics of a document, and can include embedded scripting language code which can affect the behavior of web browsers and other HTML processors.

HTML is also often used to refer to content of the MIME type text/html or even more broadly as a generic term for HTML whether in its XML-descended form (such as XHTML 1.0 and later) or its form descended directly from SGML (such as HTML 4.01 and earlier).