.poster{
    height: 224px;
    position: absolute;
    background-repeat: no-repeat;
    background-position: center;
    transition: all 1s;
    -moz-transition: all 1s;
    -webkit-transition: all 1s;
    top: -500px;
    left: 300px;
}

@keyframes fall {
    0% {top:-500px;}
    25%{top: 200px;}
    50% {top: 100px;}
    100% {top: 200px;}
} 

@-webkit-keyframes fall {
    0% {top:-500px;}
    25%{top: 200px;}
    50% {top: 100px;}
    100% {top: 200px;}
}
.poster.down{
    top: 200px;
    z-index: 1000;
    animation: fall 1s linear;
    -webkit-animation: fall 1s linear;
}
.black-layer{
    background: rgba(0,0,0,0.5);
    cursor: pointer;
    top: -184px;
    left: -60px;
    z-index: 100;
    position: absolute;
}