Joomfish lang selection module is not clickable in Google Chrome

Hello,
I´m using joomfish and I made a new module position for lang. selection (flags) in the right side of main menu. It works, but in Google Chrome the links are not clickable. It must be some css problem, please help what I must change.
Here is site: http://www.kartellshop.cz

I'm using Google Chrome and everything is fine. I can click both flag.