wxminipay/app.wxss

/**app.wxss**/
.container {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 10rpx 0;
  box-sizing: border-box;
} 
.button::after{
  background-color: #fff ;
  line-height:0.01
}