Chapter i. Introduction

When a page loads in my browser window, the first thing I want to figure out is “How did they do that?” Whether it’s tabs using HTML text, a menu bar floating down the page, or drop shadows behind text, I am constantly discovering new ideas for Web design and user experience. Almost invariably, though, the answer to my question involves cascading style sheets or dynamic HTML.

CSS and DHTML (along with HTML and JavaScript) form the core skill set of every Web designer, yet mastering these two technologies takes more than knowing the basics of how they work. The problem is that, though both HTML and JavaScript have been relatively stable for several years now, CSS and DHTML have only in the last couple of years become standardized ...

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