Hover over most any hyperlink on the site (look at the footer on the homepage for a quick example) and you’ll see a gentle fade to the hyperlink’s hover color.
I was certain it was jQuery until I could find no mention of these animations in the jquery.custom.js file — only adding specific hover color classes.
Baffled!
Looks like this is doing it:
I’m embarrassed to say that I’m unfamiliar with the transition property, but I was baffled at first too, especially after I disabled javascript 🙂
It worked for me in FF4 and Chrome, but according to this article I quickly googled, IE9 will not be supporting this property. I wouldn’t take that as fact, that’s just what I found with 5 minutes research.