#popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,.7);
    
    z-index: 9999999;
    display: none;
}

#popup .box {
   
    
    width: 750px;
    height: 450px;
    
    margin: 150px auto;
    cursor: pointer;
    
    position: relative;
}

#popup .close {
    position: absolute;
    top: -15px;
    right: -15px;
    padding: 10px;
    
    color: #fff;
    background-color: #000;
    font-size: 30px;
    font-weight: 700;
     z-index: 99999999;
     opacity: 1;
     
}

#popup .image {
     background-size: cover;
    background-position: center center;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
     z-index: 99999998;
}