roll over image issue

I’ve been working on a blog for some time and now need to add a few rollover images to the homepage.

I’ve set up the image using CSS and it works great (example page)

The problem is when I put the div tag into the main page <div id=”imageroll”></div> I just get a blank page. hompage

Anything I’m missing since this is in the page created by the dashboard?

Kind Regards,

Versipellis