body {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: black;
  color: white;
  font-family: 'Press Start 2P', cursive;
}

h1 {
  margin: 10px;
  color: yellow;
}

#gameCanvas {
  border: 2px solid white;
  background: black;
}