I'm trying to use the foundation's revel modal script. The trouble is the site isn't built using all foundation framework at this stage I wish to just use UI elements of it. For this reason and in particular the fact I'm not using thier grid that I'm getting problems.

The modal is working yet the background when the modal is active only covers a little of the screen - example is seen here.

I want the background to completly cover the screen as per normal...