HTML is a markup language that web browsers use to compose text, images and other material on the web pages. Tim Berners-Lee invented the World Wide Web in 1990 to facilitate sharing and updating information on Web using HTML. To create web pages, text editor and web browser is required. These tools already exist in the computer. The code in the text editor such as Notepad is written in a special language known as Hypertext Markup Language.
The BODY tag contains all the content of the document that is to be displayed in the browser. The HTML elements consist of tags enclosed in angle brackets. There are two types of tags: Container and Empty. A container tag has a start tag as well as an end tag. An empty tag only contains a start tag. Formatting text changes the appearance of text. FONT tag has a few parameters which specify the font face, size, color etc. Margins set the left hand and right hand margin of the document. The top margin sets the top margin of the document. The left margin sets the left hand margin of the document.