Treffer: JavaScript and CSS.

The interaction between JavaScript and CSS is a mainstay of modern JavaScript programming. It is virtually a requirement that all modern web applications use at least some form of dynamic interaction. When they do, the user is able to move faster and waste less time waiting for pages to load. Combining dynamic techniques with the ideas presented in Chapter 6 on events is fundamental to creating a seamless and powerful user experience. [ABSTRACT FROM AUTHOR]