html,
body {
  margin: 0;
  max-width: 100vw;
  max-height: 100vh;
  overflow: hidden;

  font-family: sans-serif;
  font-size: 32px;
  line-height: 1.4;
}

#container {
  position: relative;
}

#sub {
  position: absolute;
  bottom: 25%;
  left: 50%;
  translate: -50% 0;
  color: white;
  text-shadow: 0px 0px 4px black;
  max-width: 60ch;
  text-align: center;
}

audio {
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 50;
}