小程序数字化怎么布局（用position:sticky完美解决小程序吸顶问题的实现方法）

<template>
	<view class="">
		<view class="">
			<view class="box">
				
			</view>
			<view class="tabbar t1">
				tabbar
			</view>
			<view class="box">
				
			</view>
			<view class="tabbar t2">
				tabbar
			</view>
			<view class="item" v-for="(item,index) in 20" :key='index' >
				{{item}}
			</view>
		</view>
	</view>
</template>

<script>
</script>

<style>
	.box{
		height: 30vh;
		border: 1px solid #007AFF;
	}
	.tabbar{
		background: #fff;
		position: -webkit-sticky;
		position: sticky;
		background: #4CD964;
		height: 50upx;
		
	}
	.t1{
		top: -1upx;
	}
	.t2{
		top: 50upx;
	}
	.item{
		height: 100upx;
		margin-bottom: 20upx;
		background: #007AFF;
	}
</style>