CSS is a high level language used very often as a low level one. The styling doesn't use any "cascading" and everything is repeated all the time. In this context minifying can make a difference. But either way it is not among my favorites.
Does minifying make any difference if you're gzip-ing it in-flight anyway?
Edit: I mean, in the real world. Obviously in their example gzip does pretty much nothing since there's so little content, which leave very little room for compression.
