Very helpful article
As a system administrator I don't spend very much time learning how web pages are constructed. I'm too busy learning how to create encrypted network connections and such. Having some idea of what is going on in CSS is valuable to me. This article spanned the void between providing a glimpse of what is happening vs. studying a book on the subject, which I wouldn't do. At least now I can see that the CSS boxes look just like HTML code. I'd like to read more quick and dirty articles about CSS.