So I notice that AF includes it's stylesheet directly on the page code. This is kind of a waste, since it generates a lot of redundant data transfer. If you were to put it in separate files and include them by link instead of just dumping it on the page, the browser will cache it and only download it when necessary, reducing traffic and possibly also the maintenance cost of AF.
I did some checking, and most pages on AF are around 20-25 kB. Around 5 of those kB is the stylesheet, so that's around 20%-25% of the traffic in every page load that is completely redundant(!)
Just a suggestion.