body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f0f0f0;
  margin: 0;
  font-family: Arial, sans-serif;
}

#game-container {
  position: relative;
  width: 600px;
  height: 200px;
  border: 2px solid #000;
  background-color: #fff;
  overflow: hidden;
}

#dino {
  position: absolute;
  bottom: 0;
  width: 40px;
  height: 40px;
  background-color: #4caf50;
  border-radius: 10px;
}

#obstacle {
  position: absolute;
  bottom: 0;
  width: 20px;
  height: 40px;
  background-color: #e74c3c;
  border-radius: 5px;
}

#score {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 24px;
  color: #333;
}