.order-nav {
  border-bottom: 1rpx solid #e0e0e0;
  border-top: 1rpx solid #e0e0e0;
  background: #fff;
  position: fixed;
  display: inline-block;
  top: 120rpx;
  width: 100%;
  z-index: 1001;
}

.order-nav>view {
  float: left;
  height: 81rpx;
  width: 25%;
  line-height: 81rpx;
  color: #b0b0b0;
  font-size: 23.4rpx;
  font-family: PingFang SC;
  text-align: center;
}

.order-nav .nav-tap {
  display: block;
  height: 100%;
  width: 100%;
  color: #b0b0b0;
  font-size: 28rpx;
  font-family: PingFang SC;
}

.nav-tapButton {
  background-color: red;
  width: 187rpx;
  height: 81rpx;
  opacity: 0;       
  position: absolute; 
  top: 0rpx; 
}

.order-nav>view.active .nav-tap {
  color: #444444;
}