.lightbox{
    position: fixed;
    top: 0px;
    left: 0px;
    height: 100%;
    width: 100%;
    z-index: 7;
    opacity: 0.3;
    display: block;
    background-color: rgb(0, 0, 0);
    display: none;
}
.pop,iframe{
    position: absolute;
    left: 50%;
    top:0;
    width: 893px;
    height: 100%;
    margin-left: -446.5px;
    z-index: 9;
}