An acronym for Hypertext Markup Language. HTML is the set of markup symbols or codes inserted in a file intended for display on a World Wide Web browser page.

The markup tells the Web browser how to display a Web page's words and images for the user.

Each individual markup code is referred to as an element (but many people also refer to it as a tag).

Some elements come in pairs that indicate when some display effect is to begin and when it is to end.