I want the forum not to be 100% wide but something like 70 or 80, can it be done? I don't know what file to edit.
You change the width from the theme editor in the admin cp.
ACP -> Themes -> Modify / Delete -> *Theme Name* -> Edit Theme Style
Look for the Page Container heading and adjust the width property accordingly.
Great, I didn't know about that, thanks... Can I change the Background color to an image instead of a hex number?
You can.
In the same place, look for the
Body section and add this to the
Extra CSS Attributes section. Remember to replace "path" in the code below with the path to your background image, relative to the forum root.
background-image: url(path);
Also make sure that if you add it to the end of the existing extra CSS attributes, you'll need to ensure that the line above ends with a
;
For future reference, the MyBB Wiki contains a detailed section on the theme editor and what each heading allows you to customise.
[Wiki: Admin_CP_Themes] (Broken link, head over to docs.mybb.com instead)
