HTML is a language for describing web pages. HTML stands for Hyper Text Markup Language. It is not a programming language, it is a markup language. A markup language is a set of markup tags. This tags uses markup tags to describe web pages. HTML markup tags are usually called HTML tags:- - HTML tags are keywords surrounded by angle brackets like <html> - HTML tags normally come in pairs like <b> and </b> - The first tag in a pair is the start tag, the second tag is the end tag - Start and end tags are also called opening tags and closing tags For more information about HTML refer the following site..w3school, lynda..