body > div[style*="position: absolute"] {
    position: fixed !important;
    inset: 0 !important; /* top, right, bottom, left: 0 */
    width: 100vw !important;
    height: 100vh !important;
    z-index: 10000 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: rgba(0, 0, 0, 0.5) !important;
}

body > div[style*="position: absolute"] > iframe {
    position: relative !important;
    max-width: min(400px, 90vw) !important;
    max-height: min(580px, 90vh) !important;
}