I am pretty new to CSS. And have got a school assignment where a group of 4 persons are supposed to make a page about them self.

We are all going to make our own stylesheets that can be used on all of the four pages. What I was wondering about is if I can add a picture to the document using CSS. If I can I can use pictures on the other 3 members web sites even if they don't have that picture there. Is that possible using CSS?