Rating: 

Futhermore, in one important respect the third edition is a step back from the first edition. In the first edition, Appendix D's CSS Support Chart described the ability of the various browsers available at that time to support specific features of the CSS standard. In my case, this was one of the most heavily used sections of that first edition.

The third edition, however, does not have an equivalent appendix and is, in fact, silent on the subject - except for a few occasional comments randomly inserted in passing throughout the body of the text. To earn a fifth star, I'll need to see the return of some reasonably comprehensive treatment of the conformance of the various available browsers.