A markup language used to structure text and multimedia documents and to set up hypertext links
between documents, used extensively on the World Wide Web.
HTML, which stands for HyperText Markup Language, is the predominant markup language for
web pages. It provides a means to create structured documents by denoting structural
semantics for text such as headings, paragraphs, lists, links, quotes and other items.
It allows images and objects to be embedded and can be used to create interactive forms.
It is written in the form of HTML elements consisting of "tags" surrounded by angle brackets
within the web page content. It can embed scripts in languages such as JavaScript which affect
the behavior of HTML webpages. HTML can also be used to include Cascading Style Sheets (CSS) to define the appearance and layout of text and other material. The W3C, maintainer of both HTML and CSS standards, encourages the use of CSS over explicit presentational markup.

In computing, HyperText Markup Language (HTML) is a markup language designed for
the creation of web pages and other information viewable in a browser. The focus
of HTML is on the presentation of information—paragraphs, fonts, italics, tables,
and so forth—rather than the semantics—what the words mean.

Originally defined as a highly simplified subset of SGML, which is used
by organizations with highly complex publishing requirements, HTML is now
an international standard (ISO/IEC 15445:2000). The HTML specification is
maintained mainly by the World Wide Web Consortium (W3C).

The initial versions of HTML were very tolerant of simple kinds of coding mistakes. The browser commonly made assumptions about intent, and proceeded with the rendering. Over time, the trend has been to create an increasingly strict language syntax. HTML 4.01 is the current version, although the W3C is moving toward replacing it with XHTML, which applies the relentlessly strict checking of XML to the HTML world.