We learned today that WEB 2.0 is based on Cascading Style Sheets (CSS) and HyperText Markup Language (HTML). HTML is a text and image formatting language used by web browsers to dynamically format web pages, in code that can be written and edited with programs such as Macromedia Dreamweaver.  The code it self can be formatted, but the format will be ignored by web browsers.  Tags, enclosed between  "<" and  ">" , indicate if the enclosed text is information for fonts, text to be displayed, and all information that characterizes a page.

The code is divided  into elements sections with title, body.  The kinds of elements are structural, presentation, and links.