*{margin:0;padding:0}html{box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box}body,html{width:100%;height:100%}body{background:#f5f5f5;-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-family:PingFangSC-Medium}a,a:focus,a:hover{cursor:pointer;color:inherit;text-decoration:none}.div_left{float:left}.div_right{float:right}.clearfix:after{visibility:hidden;display:block;font-size:0;content:" ";clear:both;height:0}#app{height:100%}