How do i make a BG?

How do I make a BG like behind like hmm... A Piece of somthing like behind navigating - Example of the BG - http://habbostory.ulmb.com/image/BG1.PNG

You mean a background? o_O

i need help putting in my background for my website i do not know how <- Click

No I mean like on http://www.habboaddicts.net they have a BG behind everything - Text - If you right click save as - It will say BG 1 - BG 2 - BG 3 and so on.

If you mean like different ones behind different tables 'blocks' then youd do it like this..

row 1, column 1

row 1, columnn 2

You can use several of these on a page or 1 for each tabel you want a bg for btw you can use colors too. I thought you wantd a general page bg at 1st but now i see and i think this is what you want.

I'd suggest using the CSS for it though.