/* The iframe carries the aspect ratio in-flow. A replaced element keeps a
   non-zero intrinsic width, so content-sized or non-stretching flex ancestors
   can't collapse the embed to 0×0 the way an absolutely-positioned iframe did. */
.livid-video-embed iframe {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: var(--livid-aspect-ratio, 16 / 9);
    border: 0;
}