*,:before,:after{box-sizing:border-box}html,body{overscroll-behavior:none;height:100%;margin:0;padding:0;overflow:hidden}*{-webkit-touch-callout:none}input,textarea,[contenteditable]{-webkit-touch-callout:default;-webkit-user-select:text;user-select:text}*{-webkit-tap-highlight-color:transparent}canvas{-webkit-user-select:none;user-select:none;display:block}