I have a CSS book from that time, one I kept too long because I felt it was one of the better CSS books in its time and hasn't been replaced as I keep a certain amount of books for decorative purposes and haven't bought new development books in a while.

The final chapter, in a "putting it all together" style spent most of its time om a holy grail layout.

If I was writing a modern CSS book, this topic would be somewhere in the second quarter in a chapter on grid and flexbox.