html,body,#root{margin:0;padding:0;height:100%;touch-action:none;overflow:hidden}.game-root{width:100%;height:100%;position:relative;background:#fff}.game-root canvas{display:block}.leave-btn{position:absolute;top:8px;right:8px;z-index:10;padding:6px 10px;font-size:14px}.joystick-area{position:absolute;top:0;right:0;bottom:0;left:0;touch-action:none}.joystick-base{position:absolute;width:80px;height:80px;margin-left:-40px;margin-top:-40px;border:2px solid #888;border-radius:50%;background:#96969633;transition:opacity .2s}.joystick-stick{position:absolute;width:40px;height:40px;margin-left:-20px;margin-top:-20px;border-radius:50%;background:#64646480;transition:opacity .1s}