#popup {
    background-color: white;
    position: absolute;
    display: none;
    left: 50%;
    top: 50%;
    z-index: 1000;
    width: 254px;
    height: 134px;
    margin-left: -127px;
    margin-top: -67px;
}
#popup #popupIframe{
    height: 134px;
    width: 255px;
}
#mask {
    opacity: 0.6;
    background-color: black;
    display: none;
    position: absolute;
    z-index: 100;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
}