#background {
    margin:auto auto;
    background-size: cover;
    position:relative;
    width:100%;
    height:300px;
}
#billboard {
    margin:0px;
    padding:0px;
    left:346px;
    top:298px;
    width:500px;
    height:200px;
    background-size: contain;
    background-position: center center;
    background-repeat: no-repeat;
    position:absolute;
    transform: perspective(1600px) rotateY( 0deg);
    background-color: rgba(0,0,0,0.75);
}
.slat {
    background-size: cover;
    width:100px;
    height:100%;
    position:absolute;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transition-property: all;
    transition-duration: 1.5s;
    border: rgba(0,0,0,0.4) solid 1.5px;
    /*box-shadow: #333 0px 0px 8px;*/
}