Partial "X" shape over image on hover

by web tiki

HTML

<div id="xdiv" ></div>

CSS

#xdiv {
    position:relative;
    width: 200px;
    height: 200px;
    border: 1px solid #999;
    background-image: url('http://placehold.it/200x200');
}
#xdiv:hover {
    cursor: pointer;
    opacity: .4;
}
#xdiv:before, #xdiv:after{
    content:'';
    position:absolute;
    display:none;
    left:50%;top:0;
    width: 1px; height: 100px;
    border-top: 50px solid #333;
    border-bottom: 50px solid #333;
    transform: rotate(45deg);
    -ms-transform: rotate(45deg); /* IE 9 */
    -webkit-transform: rotate(45deg); /* Safari and Chrome */
}
#xdiv:hover:before {
    display:block;
}
#xdiv:hover:after {
    display:block;
    transform: rotate(-45deg);
    -ms-transform: rotate(-45deg); /* IE 9 */
    -webkit-transform: rotate(-45deg); /* Safari and Chrome */
}