Color gradient background

Hi, can anyone point me a way of doing color gradient background in CSS, i am sure i have seen it before somewhere, i have googled it but cant find anything, can anyone help?

I want color #FFFFFF at the top
going into color #000000 at the bottom, many thanks.

You can make a .gif or .png with transparency, and then create your gradient, overlay and tile this on top of your background color. If you want a vertical gradient running horizontally, the image only needs to be 1px wide and as tall as the gradient and repeated on the x-axis. For a horizontal gradient running vertically, vice a versa... For example:

body {
background-color:#000000;
background-image:url{your-vertical-gradient-image.gif);
background-repeat: repeat-x;
}