.zoom-before{
    background-repeat: no-repeat;
    background-origin: content-box;
    height: 100%;
    background-size: cover;
    background-position: center;


}

.zoom-after {
    transition: background-size 40000ms linear;
    -ms-transition: background-size 40000ms linear;
    -webkit-transition: background-size 40000ms linear;
	-moz-transition: background-size 40000 linear;
	-o-transition: background-size 40000 linear;
    background-size: 300% auto;
}