/* Full-page black background and centered video */
html, body {
  height: 100%;
  margin: 0;
}
body {
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-wrapper {
  width: min(90vw, 1200px);
  aspect-ratio: 16 / 9;
}
.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
  display: block;
}