Safari 6 layout issues

[leppdesign]

Built a website for my client about 1-2 years ago. Everything has been working fine until he just emailed me to say he upgraded to Mountain Lion/Safari 6 and now in Safari, his website looks a little screwy. He said Firefox looks fine, but Safari 6 is rendering weird. Here is the link: http://www.rickthomas.net/

Any ideas?

 

[Sital]

I was about to post that that site looked fine to me, but then I realized I just switched back to Firefox because I got tired (again) of Safari's quirks.