#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50;margin-top:60px}body,html{font-size:12px}.back-button__icon{fill:#fff}.van-number-keyboard{position:relative}.van-number-keyboard__title-left{right:28px}