.video {
  margin: auto;

  @include media($large-screen) {
    width: 50%;
  }
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; // For ratio 16:9. 75% if ratio is 4:3
  height: 0;
}

iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}