.tb-con{
  position: relative;
  z-index: 9999;
}
.is-iphoneX .van-tabbar--safe {
  padding-bottom: 50rpx;
  height: 150rpx;
}
.van-tabbar {
  min-height: 100rpx;
	height: calc(100rpx + env(safe-area-inset-bottom) / 2);
}