#ac-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
#popup img {
    width: 700px;
    max-width: 100%;
}