Firefox attributes layout problem?

[moralpunch]

Hi everyone!

I'm just setting up my first Zen cart and everything is going great except... I get a lot of white space between the attributes in Firefox (windows) that isn't present in IE. This is the url:

http://www.moralpunch.com/cart/index...&products_id=2

I'm attaching the tpl_modules_attributes file also because I can't for the life of me figure out why firefox is adding all that extra space.
I haven't tested it on a Mac yet.

Any help would be very very much appreciated!

Thanks!

- Eliza