Triangule shadow

by luissanchezm86

HTML

<div id="board">Place image here!</div>

CSS

#board {
    position: absolute;
    left: 50px;
    top: 50px;
    background: #e5e5e5;
    text-align: center;
    width: 100px;
    height: 100px;
}
#board:before {
    z-index: -1;
    position: absolute;
    content:"";
    bottom: 0;
    left: 5px;
    width: 5px;
    height: 50%;
    background: rgba(0, 0, 0, 0.7);
    -webkit-box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
    -moz-box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
    box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
    -webkit-transform: rotate(6deg);
    -moz-transform: rotate(6deg);
    -o-transform: rotate(6deg);
    -ms-transform: rotate(6deg);
    transform: rotate(6deg);
}
#board:after {
    z-index: -1;
    position: absolute;
    content:"";
    bottom: 0;
    right: 5px;
    width: 5px;
    height: 50%;
    background: rgba(0, 0, 0, 0.7);
    -webkit-box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
    -moz-box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
    box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
    -webkit-transform: rotate(-6deg);
    -moz-transform: rotate(-6deg);
    -o-transform: rotate(-6deg);
    -ms-transform: rotate(-6deg);
    transform: rotate(-6deg);
}