In the form of hypermedia documents, Web pages or materials accessed by the Internet can be located anywhere in the world.

Regardless of where they originated, most of the Web documents are formed using Hypertext Markup Language (HTML). HTML is an influential authoring language and contain different versions like HTML 4.2, HTML 4.0, HTML 3.2, HTML 3.0 & HTML 2.

HTML is used to described document structure and format, along with the help of a single tag or a pair of tags. In the language a tag is a string surrounded through a less than (<) and a greater than (>) sign.  An opening tag does not start with a slash (/). An ending or closing tag is a string which begins with a slash (/).

HTML documents format textual information along with embedded markup tags which provide structure and style information. In HTML a whole document begins  along with

and ends with .