Box Shadow works in all mordern [IE>8] browsers, This code uses no images and works in all browsers in IE versions below 9.
box-shadow:2px 2px 10px 10px #C9C9C9;
-webkit-box-shadow:2px 2px 10px 10px #C9C9C9;
-moz-box-shadow:2px 2px 10px 10px #C9C9C9;
/* For IE<9 */
filter:
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=0,strength=5),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=45,strength=2),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=90,strength=5),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=135,strength=5),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=180,strength=10),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=225,strength=5),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=270,strength=5),
progid:DXImageTransform.Microsoft.Shadow(color=#C9C9C9,direction=315,strength=2);
Box shadow supported from IE 9 onwards.
http://dev.opera.com/articles/view/cross-browser-box-shadows/
http://coolhomepages.com/How-to-make-easy-gradient-shadow-CSS-DIV-boxes/blog-48.html – Lemdor Oct 14 '12 at 09:58