*{box-sizing:border-box}body,html{width:100%;height:100%}body{margin:0;padding:0}#app{width:100%;height:100%}ul{margin:0;padding:0}li{list-style-type:none}::-webkit-scrollbar-thumb{min-width:24px;min-height:24px;background-color:#ddd;border:1px solid #fff;border-radius:6px}::-webkit-scrollbar{width:10px;height:12px}