Centering a background image, using CSS

Question

I want to center a background image. There is no div used, this is the CSS style:

body{
    background-position:center;
    background-image:url(../images/im         


        

Answer 1

background-repeat:no-repeat;
background-position:center center;

Does not vertically center the background image when using a html 4.01 'STRICT' doctype.

Adding:

background-attachment: fixed;

Should fix the problem

(So Alexander is right)