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Chapter 18. VISUAL FORMATTING FAMILY OF ... > The Set of Positioning Properties

The Set of Positioning Properties

One of the longest-standing concerns in Web-page design is the positioning of elements on a Web page. How many times have you wanted to add some image or text to a specific point on a Web page, and found that this seemingly simple task tried your patience? Over time, people have attempted such tricks as transparent images, indented unordered list tags and maddeningly intricate sets of tables in order to get something exactly where they wanted it to be.

The set of positioning properties — consisting of POSITION, TOP, LEFT, RIGHT and BOTTOM — were among the earliest of the post-CSS1 properties to be suggested. They are part of a new sub-set of properties originally known as "CSS Positioning", or simply CSS-P for short. Using these properties, you can now state exactly where you want a Web element to appear on screen. What is more, these properties are among those few CSS2 properties that are at least partially implemented in Netscape Navigator 4.0 and Internet Explorer 5.0.


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