How to change content boxes to go full width

Hi Wes,

I have been struggling to get content boxes on a page to go full width (cover the full screen in width) and was hoping you could give some advice on how to solve this issue.

For example, on this page (http://traveltopspot.com/5575-2/) I am trying to widen the gray content box on the page to cover the full screen in width.

I have tried editing the site inner wrap and also given content boxes a new dimension in width but no luck in getting any changes to show.

I would appreciate any help you could give me!

Thank you