2 cols problem

Hi guys, please check this page.

http://www.valdifassa-bike.it/index.php ... e-dolomiti

I have create a 2 cols module.

Then i have added a div with clear:both and another 2 cols module.

The first two row works but then something break.

It's a simple copy paste, what is the problem? I don't understand.

Thank you!

It looks like an issue with not closed html tags or too many closed html tags. Please verify your html.

thank you!

Have you been able to find source of the problem?