spry accordion tab height effecting content

Question

I have created a simple spry accordion on this test page http://www.rubbuk.com/test/index.htm

Link : "Choose your location"

Inside the .AccordionPanelTab div I have created my own div to style the location drop down. Doing this has somehow created a blockage in the content section. I've tried the simple things of heights etc but they didn't seem to work.

Any help would be great.