Adding code into header thats outside the forum width

[NoKSouLz]

Basically i have a forum thats got a funky background that goes down each side of the forum. The forum is set to a specific width so that the images are displayed down the sides as a background.

I have created and setup a bar that contains quick and easy options for users that appears at the very top.

I have coded it in CSS and added it into the Additional CSS template file. I have also added the div codes into the very top of the header.

My bar seems to be limiting to the forums width when i want it to stretch completely across the top of the page 100% width.

I have used a container and set it to 100% width but it seems to be setting 100% of the forums width rather than page width

www.decerto.net

How would i go about making it 100% page width rather than forum width.

Thanks

Alec