[Website] Redesigning the queue system for our university

We are a bunch of computer science students who have been tasked with replacing the aging queueing system of our university with a new, web based one. Our site can be found at qwait.csc.kth.se (album here)

We haven't had much experience in web design, so any feedback is very much appreciated. I'm currently kind of worried that there's just too much whitespace, among other things which might not be immediately obvious to us