.Joystick {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 140px;
  z-index: 1;
}

.Left {
  composes: Joystick;
  left: 20px;
  transform: none;
}

.Right {
  composes: Joystick;
  left: auto;
  right: 20px;
  transform: none;
}