MyBB Community Forums

Well, I think I'd give my site a good look if I could thin out the whole thing, just where all my categories and forums are. (The main thing in the middle, not sure what it's called, I guess a body?)

Is there a way to make the dimensions of that smaller?

My site example: blueflametech.net

In the global.css of your theme, change the width of the #container.