To add a gradient to an element using CSS, just add the following code to your CSS
[cc lang=”css”]
background: #dcd9d1; /* for non-css3 browsers */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=’#dbd8d0′, endColorstr=’#f4f3f1′); /* for IE */
background: -webkit-gradient(linear, left top, left bottom, from(#dbd8d0), to(#f4f3f1)); /* for webkit browsers */
background: -moz-linear-gradient(top, #dbd8d0, #f4f3f1); /* for firefox 3.6+ */
[/cc]
If a browser doesn’t support gradients, it will just display the background color.
To change the direction and other values of the gradient, check out http://webdesignerwall.com/tutorials/cross-browser-css-gradient.