Source: http://www.w3schools.com

What is an HTML File?

• HTML stands for Hyper Text Markup Language
• An HTML file is a text file containing small markup tags
• The markup tags tell the Web browser how to display the page
• An HTML file must have an htm or html file extension
• An HTML file can be created using a simple text editor

HTML documents are text files made up of HTML elements.

HTML elements are defined using HTML tags. Read on