box-shadow: 5px 5px 10px rgba(0,0,0,.3);
box-shadow: -5px -5px 10px rgba(0,0,0,.3);
box-shadow: 5px 5px 0 rgba(0,0,0,.8);
box-shadow: inset 5px 4px 3px rgba(0,0,0,.5);
box-shadow: inset 0 0 25px #fff;
box-shadow: inset -5px -5px 10px -2px #333, 10px 10px 5px 0px #33CCFF;