HTML (HyperText Markup Language) is not a programming language, but a way of formatting the layout of text.

HTML tags usually come in pairs; the opening tag and the closing tag. Everything between the opening tag and the closing tag is formatted by the tag and its optional parameters (specified as part of the opening tag).

For example, if you write:

The Internet is <STRONG>very</STRONG> useful!
the result would be:
The Internet is very useful!

A very simple HTML document looks like this (the indents are not necessary and will be ignored by the browser); 

<HTML>
  <HEAD>
    <TITLE>
      Enter your title here
    </TITLE>  
  </HEAD>
  <BODY>
    <H1>First Heading</H1>
    Enter the text of your document here
  </BODY>
</HTML>

All spacing characters (e.g. spaces, tabs and line breaks) are replaced by single spaces when HTML documents are displayed by Web browsers. This means that you must specify where you want line breaks (<BR>) and paragraphs (<P>) in your text.