-width: 720px;       /* allows the container to shrink if small */
        aspect-ratio: 16 / 9;   /* set container aspect ratio if preload=none */
      }

      video {
        width: 100%;      /* prevents video to expand beyond its container */
      }

      media-airplay-button[mediaairplayunavailable],
      media-fullscreen-button[mediafullscreenunavailable],
      media-volume-range[mediavolumeunavailable],
      media-pip-button[mediapipunavailable] {
        display: none;
      }

      .example