@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

* {
  margin: 0;
  padding: 0;
}

body {
  background: #000;
}

section {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
}

video {
  border-radius: 50%;
  cursor: pointer;
}

.play-button {
  position: absolute;
  text-align: center;
  width: 100%;
  font-family: "Helvetica Neue", sans-serif;
  color: #fff;
  font-size: 2rem;
  text-transform: uppercase;
  opacity: 0;
  display: none;
  animation: fadeIn forwards 0.5s;
  letter-spacing: 1rem;
  cursor: pointer;
}

@media (max-aspect-ratio: 1/1) {
  video {
    max-width: calc(100vw - 2rem);
  }
}

@media (min-aspect-ratio: 1/1) {
  video {
    max-height: calc(100vh - 2rem);
  }
}