*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html,body,#app{height:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;touch-action:manipulation}img{max-width:100%;vertical-align:middle}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#c0c4cc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#909399}