.ly_poster_233 .global_container .poster_list .item .img:after{    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 100%;
    opacity: 0;
    -webkit-transition: all 0.3s ease-out;
    -o-transition: all 0.3s ease-out;
    transition: all 0.3s ease-out;
    z-index: 2;background-color:rgba(0,0,0,20%)}
.ly_poster_233 .global_container .poster_list .item:hover .img:after{    opacity: 1;
    left: 0;}