body {
  font-family: Arial, sans-serif;
  background: #87ceeb;
  text-align: center;
}

h1 {
  margin-top: 10px;
}

#game-container {
  width: 600px;
  height: 400px;
  margin: 20px auto;
  border: 4px solid #333;
  background: #5c8c3d;
  overflow: auto;
}

/* Optional: make embedded canvas behave nicely */
#game-container canvas {
  max-width: 100%;
  max-height: 100%;
}