*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}button{font:inherit}canvas{display:block}
html{overscroll-behavior:none}body{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}button{touch-action:manipulation}