By now, you should have a solid understanding of how to create web pages using HTML or XHTML markup. You should understand how to encode semantic meaning into your page content. You should be familiar with the concept of page elements and how these elements can be nested inside one another to give a page an orderly structure. Finally, you should also understand the basics of how a web browser interprets your (X)HTML source code and determines its rendering. All of these topics were covered in the previous chapter, and all the concepts in this chapter will build on them.

In this chapter, you'll take a much closer look at how the web browser actually displays elements inside its window, and we'll ...

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