I've been looking around for a while, and experimenting with CSS but unable to find a solution to the problem. To be more exact I want to be able to make the background different on certain pages, without making a script for every page I want to effect. I know I could do this, but the reason why I am making this post is that I want a more efficient way of doing it.
Summary: Change the background to a certain image depending on the categories that the page is linked to.
(Clarification. page without *example* category has default background, but the page with *example* category has a different background.)
Any help will be appreciated!