Shoutbox

I doubt many people use the tabs, but for those that do, I want my skin to look perfect for them too . Here is what my skin looks like with the contact list:


As you can see, there are spaces between the contact list and everything else. This is the intended way it should look.

Then when I choose a tab that loads a webpage (?) it looks like this:


Now there are no spaces between the contact list area (now a webpage) and the surrounding elements.

My question is, is there a way to change the padding of the things that the tabs open?