Well, you’ve got a lot of theory under your belt now. You not only understand the value of structured markup as studied in Chapter 1, but you’ve got a thorough view of the fundamental issues in CSS.
The time has come to start practicing! In Chapter 3, you’ll go through numerous exercises that are mapped to the theory in this chapter. This way, the theory doesn’t remain amorphous. You’ll study how to prepare a CSS document, write, classify, and group rules effectively, and use a range of selectors and properties so as to see the way they really work. You’ll also learn about CSS validation, which can be very helpful to you when learning CSS.