Oh man, Camino uses Gecko 1.9.0 which is the same version Firefox 3.0 shipped with (but the buttons work in firefox 3.0).

I traced down the bug to a conflict in my blog's css with the buttons. Somewhere they are inheriting styles that break them. The code for the buttons on github does not have this problem.

I would love to fix this, but Camino doesn't appear to have any sort of developer tool. How are you suppose to debug things?