Mess with overflow in IE

I've got a strange mess in tables in one of my components in your tamplate - in my css rule .collapse I've got {overflow: hidden;} but seems like sth from template overrides it in IE and displays the content, making a terrible mess in the table While on Safari and Mozilla it works perfect.
The working wersion of the site is on http://www.demo.littera.edu.pl - I'll send a password to an email.
There will be no problem but still some people use Bill's explorer

Regards,
Piotr

Well, you may close this topic as I've made an override in a template css and it works perfect!

For those who will by any chance encounter that problem with DIV tables in IE this is the solution:

.yourstyle {overflow:hidden!important;}

Cheers,
piotr