html,body{width:100%;height:100%;background-color:#eee;margin:0;padding:0;overscroll-behavior:none}.center{align-items:center;display:flex;justify-content:center;height:100%;width:100%}#app_area{max-width:414px;max-height:915px;width:100%;height:100%;margin:0 auto;background-color:#f3f4f5;box-shadow:0 0 10px #0000001a;overflow:hidden}