html, body {
  width: 100%;
  height: 100%;
  background: black;
}

body.overlay-hidden::before {
  display: none;
}

#unity-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1; 
}
@media (max-width: 1200px), (max-height: 1920px) {
  #unity-container {
    width: 100vw;
    height: calc(100vw * 1.6);
  }
}
@media screen and (orientation: landscape) {
  #unity-container {
    width: calc(100vh / 1.6);
    height: 100vh;
  }
}
@media screen and (orientation: portrait) {
  #unity-container {
    width: 100vw;
    height: calc(100vw * 1.6);
  }
}
@media (min-width: 600px) and (min-height: 960px) {
  #unity-container {
    width: 600px;
    height: 960px;
  }
}