I bought the book (4th Edition) and have found it very interesting and helpful.
I am currently working in Chapter 8 and it links you to a css file called 1.css, it then says you can go to the website to download it. I found the download section for the 4th edition and downloaded all of the scripts. (I could not see anything else to download) When I unzipped the file I have not been able to find the 1.css file that Script 8.1 is using. Any help would be appreciated.