body,
html {
  height: 100%;
}

body {
  background-color: lightgray;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.game-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

#bevy {
  z-index: 2;
}