.st-youtube-iframe-container {
    position: relative;
    width: 100%;
    /* max-width komt overeen met de afmeting van de thumbnail */
    aspect-ratio: 16 / 9;
}

.st-youtube-iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.st-youtube-iframe-container.card iframe {
    border-radius: var(--card-border-radius);
}