Help needed with new website - link not working in FireFox
I'm working on a redesign of our school website. This time I'm doing it properly, trying to learn CSS as I go!
So far only got the first page working but it looks ok, certainly compared to the old website!
I've just got one silly problem which I can't work out, but is probably something simple. I've created a basic html link to our Prospectus which is a pdf. The link works in IE, but not in Firefox and I'm not sure why.
Could anyone take a look at my source code and tell me what I've done wrong. Usually setting up links is the easy bit!
(It's line 53 in the source code, and the link is on the 'Prospectus' button at the bottom of the menu on the right)