.c-video {
  position: relative;
  height: 0;
  width: 100%;
  padding-bottom: 56.25%; // Aspect Ratio: 16:9
  background-color: palette(neutral, 200);
}


.c-video__iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}