#popup-box-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index: 1001;
    -moz-opacity: 0.8;
    opacity: .80;
    filter: alpha(opacity=80);
}
#popup-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    z-index: 1002;
    overflow: visible;
}
#popup-box img {
    max-width: 100%;
}
#popup-box-close {
    float: right;
    cursor: pointer;
    /*color: #fff;*/
    font-size: 25px;
    font-weight: bold;
    line-height: 0;
    padding: 11px 3px;
    position: absolute;
    right: 2px;
    top: 2px;
    z-index: 1002;
    opacity: 0.9;
}
.popup-box-close:before {
    content: "×";
}
#popup-box-background:hover~#popup-box-close {
    display: none;
}