.full_width_video {
  width: 80vw;
  margin: 0 10vw;
  border-radius: 2vh;
}

.full_width_iframe {
  width: 80vw;
  height: calc(80vw * 9 / 16);
  margin: 0 10vw;
  border: none;
  border-radius: 2vh;
}