#app{height:100vh}body{font-family:Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif;color:#9b9b9b}::-webkit-scrollbar{background-color:#fff;height:13px;width:13px}::-webkit-scrollbar-track{background-color:#f5f5f5}::-webkit-scrollbar-thumb{background-color:#ccc}