Css3 阴影效果

-webkit-box-shadow: #666 0px 5px 10px;
-moz-box-shadow: #666 0px 5px 10px;
box-shadow: #666 0px 5px 10px;
/* For IE 8 */
-ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color=‘#666‘)";
/* For IE 5.5 - 7 */
filter: progid:DXImageTransform.Microsoft.Shadow(Strength=4, Direction=135, Color=‘#666‘);