Spacing problem only in Opera

I have a spacing problem in Opera that isn’t a problem in FF, Safari, Chrome or IE. My two buttons ‘Slow Download’ and ‘Fast Download’ are shifted to the right. Anyone know how I can fix this? Thanks in advance

It seems to be JavaScript somehow causing the problem, as it renders fine without JS off. (It starts off in the right position and then jumps out of pos when JS kicks in.)

Interesting. I will look into it