app.wxss

/**app.wxss**/
.container {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 100rpx 0;
  box-sizing: border-box;
} 

.fl{float: left;}
.fr{float: right;}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}
.flex{display: flex;display: -webkit-flex;}
.direction-row{flex-direction: row;-webkit-flex-direction: row;}
.direction-column{flex-direction: column;-webkit-flex-direction: column;}
.space-between{justify-content:space-between;-webkit-justify-content:space-between;}
.space-around{justify-content:space-around;-webkit-justify-content:space-around;}
.justify-center{justify-content:center;-webkit-justify-content:center;}
.align-center{align-items:center;-webkit-align-items:center;}
input{font-size: 32rpx}
button{font-size: 36rpx}
text{font-size: 28rpx}