css/js: fixed position though scrolling

Question

Does CSS(3) allow me to stick a DIV with position:absolute over the page and keep it e.g. in the middle of the browser window - even when scrolling?

Currently I re-draw and re-position the DIV again and again when the user scrolls up/down/left/right, but maybe css3 has a better way to achieve the same.

Answer 1

That's what position:fixed is for.