body { margin: 0; overflow: hidden; background: #111; font-family: sans-serif; }
canvas { display: block; }

/* Touch Buttons */
.button {
  position: absolute;
  width: 60px; height: 60px;
  background: rgba(255,255,255,0.2);
  border-radius: 30px;
  text-align: center;
  line-height: 60px;
  font-size: 30px;
  color: #fff;
  user-select: none;
}
#up { bottom: 140px; left: 80px; }
#down { bottom: 40px; left: 80px; }
#left { bottom: 90px; left: 20px; }
#right { bottom: 90px; left: 140px; }
#jump { bottom: 90px; right: 20px; }

/* Punktestand */
#score {
  position: absolute;
  top: 20px;
  left: 20px;
  color: #fff;
  font-size: 24px;
}