body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f0f0f0;
  margin: 0;
  padding: 20px;
}

#game-container {
  margin: 20px auto;
  max-width: 800px;
  border: 2px solid #333;
  background: white;
  position: relative;
}

h1 {
  color: #333;
}