* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #dfeee7;
  font-family: Arial, sans-serif;
}

#game-container {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

canvas {
  display: block;
}