div.captcha-popup > div {
    position: fixed;
    width: 100%;
    height: 100%;
}

div.captcha-popup  {
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 99999;
}

.captcha-puzzle {
    position: fixed !important;
    left: 0;
    right: 0;
    top: calc((100vh / 2) - 150px);
}