Please see this page: http://www.i2mtest.com/advertenties/vergelijken Now, on the top right of the site there's a search box. But as you can see it looks ugly. On this page the normal and desired behavior can be seen: http://www.i2mtest.com/ (click on 'advertenties' to see the jquery effect).
What is going wrong on the first page? It looks like the css is not correctly loading and there's a jquery issue as well since the effect is not triggered on click of 'advertenties'.
Thanks!