I've started on my first tableless design for a sportsclub. All worked out so far. Looks good

Now I've stumbled upon a problem I can't seem to get solved.
I want the dropdown box to apear with a 1px solid border. It just doens't want to do that. Does anyone see what I'm doing wrong ?

The first try : page
The problem <select> : page
My CSS file : page

Thanks !