.player-frame {
  aspect-ratio: 16 / 9;
}

.player-frame iframe {
  border: 0;
}

@media (max-width: 767px) {
  .player-frame {
    aspect-ratio: 4 / 3;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    border-radius: 0;
  }
}

@media (min-width: 768px) {
  .player-frame {
    aspect-ratio: 21 / 9;
  }

}