body,html{height:100%}*{margin:0;padding:0}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50;height:100%}.main{width:1200px;height:auto;margin:0 auto}