i try to let a panel open inside a centered body+page.

In my projects the body+page is centered with margin: 0 auto, but in jsfiddle this doesnt work, so i made it with a fixed margin instead:

http://jsfiddle.net/5fFGY/3/

But i think you see my problem. I dont want that the panel opens on the very left-edge, i want it to open on the left-edge of my body/page.

Is this possible?

Thanks