.alert-iframe-wrap {
    /*display: none;*/
}
.alert-iframe-wrap .alert-iframe-shade{
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 9998; background-color: rgba(222, 222, 222, .8)
}
.alert-iframe-wrap .alert-iframe{
    position: fixed; z-index: 9999; top: 50%; margin-top: -150px; left: 50%; margin-left: -315px;
}