An Effective Shadow

An Effective Shadow
 We learned earlier about shadow of box by by using the: after pseudo class.

Syntax: css

.box:after {
    background: none repeat scroll 0 0 #EEEEEE;
    box-shadow: 0 9px 20px rgba(0, 0, 0, 0.4);
    content: "";
    height: 99px;
    left: 15%;
    position: absolute;
    top: 27%;
    width: 26%;
    z-index: -1;
}