body {
  background-color: black;
}

.center {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.media {
  cursor: pointer;
  max-width: min(90vw, 640px);
}

.media:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 6px;
}

.media video {
  max-width: 100%;
  display: block;
  cursor: inherit;
}