#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50;margin:0;padding:0;position:absolute;top:0;left:0;width:100%;height:100%}div{box-sizing:border-box}