box-shadow: 0px -8px 10px lightgrey;
box-shadow: 0px 10px 5px #888, 0px -10px 5px #888;
-webkit-box-shadow: -2px -1px 15px 7px rgba(0,0,0,0.5);
-moz-box-shadow: -3px -2px 30px 14px rgba(0,0,0,0.425);
box-shadow: -4px -3px 45px 21px rgba(0,0,0,0.35);
.box-bottom-shadow {
-webkit-box-shadow: 0 8px 6px -6px black;
-moz-box-shadow: 0 8px 6px -6px black;
box-shadow: 0 8px 6px -6px black;
}