body{margin:0;overflow:hidden;background:#000}canvas{display:block}#joystick{position:absolute;bottom:20px;left:20px;width:120px;height:40px;background-color:#fff3;border-radius:20px;display:none}#joystick-knob{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:36px;height:36px;background-color:#ffffff80;border-radius:50%}#throttle{position:absolute;bottom:20px;right:20px;width:40px;height:120px;background-color:#fff3;border-radius:20px;display:none}#throttle-knob{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:36px;height:36px;background-color:#ffffff80;border-radius:50%}