#popup {
    position: fixed;
    display: none;
    width: 95%;
    height: 90%;
    left: 5%;
    top: 5%;
    z-index: 20;
    overflow: hidden;
}

#popup iframe {
    position: relative;
    width: 95%;
    height: 95%;
    visibility: hidden;
    overflow: hidden;
    border: 2px solid #a11c21;
}

#popup .show {
    visibility: visible;
    -webkit-animation: fadeIn 0.5s;
    animation: fadeIn 0.5s;
}

@-webkit-keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}