http://mrtopf.de/bootstrap/docs/base-css.html shows me a solid mass of jumbled overlapping text in OS X nightlies, whereas Chrome shows me a well laid-out, informative page.
According to the Style Inspector, there is a |font-size: 300px| rule being applied that is the cause of the awfulness.
Josh, this worksforme in a 2012-01-04 nightly on OSX... Which build are you using?
I was using 2012-01-04 when I saw it, and I just visited it in 2012-01-05 and I don't see the problem. That's unnerving.
Yeah, it's odd. I don't see any 300px font-sizes in the stylesheets there...