Suggestion buttons have more whitespace between them

The suggestion buttons (for whatever reason, not intentionally) have more white space between them, then the toolbar buttons. I took half an hour with firebug to find this out, but was unable to come up with something useful. This is a minor glitch, but nonetheless, I would have liked to fix it before writing http://hojtsy.hu/blog/2007-dec-28/experimenting-unicode-buttons

Anyway, we can still fix this bug :)