van-sticky 吸顶

<div class="box">1</div>
<van-sticky :offset-top="navbarHeight">
	<van-button type="primary">基础用法</van-button>
</van-sticky>
<div class="box">2</div>

export default {
	data() {
		return {
			navbarHeight:0,
		}
	},
	mounted() {
		console.log(document.querySelector(".page-header").offsetHeight)//获取导航条的高度
		this.navbarHeight = Number(document.querySelector(".page-header").offsetHeight);//吸顶的距离
	},
	methods: {
		
	},
}