Updated site design / CSS discussion

As per this tweet by @bgamari, quoted below:

Finally, if you have a knack for web design, GHC's website could really use some love. Contact me for details or just submit a merge request

What did you have in mind re: sprucing up the GHC site? Anything goes? Is there a specific visual identity or set of requirements to be aware of? I'm pondering maybe doing a merge request as I think even some very basic layout and typography could go a long way towards giving GHC a more polished feel.