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Web Developer’s Cookbook: More Than 300 Ready-Made PHP, JavaScript, and CSS Recipes by Robin Nixon

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CHAPTER 33
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Superclasses
Now that you have access to the almost 1800 classes from the previous chapters, this one focuses on combining them to make superclasses—single classes with the functionality of several classes at once. These superclasses include creating an RSS button, applying simple borders, handling rollovers, generating horizontal and vertical animated tabs, and more.
You’ll also discover how easy it is to create your own superclasses using simple <meta …> statements to help make building dynamic web pages the easiest it has ever been.
What Is a Superclass?
Superclasses are classes that contain groups of other classes. For example, ...

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