#app{font-family:Helvetica Neue,Helvetica,tahoma,Arial,PingFang SC,Hiragino Sans GB,STHeiti,Microsoft YaHei,WenQuanYi Micro Hei,"sans-serif";-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#2c3e50;width:100%;height:100%}*{margin:0;padding:0}body,html{width:100%;height:100%}