#app{height:100%}body,div,h1,h2,h3,h4,h5,h6,html,p{margin:0;padding:0;box-sizing:border-box}html{font-family:Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,微软雅黑,Arial,sans-serif}dd,dl,dt,li,ol,ul{list-style:none;margin:0;padding:0}a{color:inherit;text-decoration:none;cursor:pointer}i{font-style:normal}