From the outset, my intent has been to write an engaging, interactive book that focuses on practical and interesting uses of CSS that can be deployed in today's browsers. To do this, each project evolves from having no styles to being fully styled and ready for deployment on the Web. If I've done my job well, you should get the feeling of watching over my shoulder as I work on a project, with me commenting on what I'm doing as I do it.
Although you can simply read the text and look at the figures to get a sense of how a project is evolving, I think the best way to work along with the book is to have a Web browser and a text editor open as you read. That way, you can follow along with the changes I make in the text by physically making the same changes in your project file and seeing the changes in your own Web browser.
There is one point on which I want to be very clear: The techniques shown in this book are generally meant for browsers whose version number is greater than or equal to 5 (well, and Safari 1.0+). If you have to design a site that looks the same in Explorer 4.x and Netscape 4.x as it does in IE6.x and NS7.x, this book is probably not for you.