#app{height:100vh}*{margin:0;padding:0;box-sizing:border-box}body,html{height:100%;font-family:Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,微软雅黑,Arial,sans-serif}a{text-decoration:none;color:inherit}ol,ul{list-style:none}