html,body{height:100%;margin:0;padding:0;overscroll-behavior:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}*,*:before,*:after{box-sizing:border-box}