页面某个元素滚动到页面顶部

const el = document.getElementById('my-element')
window.scrollTo({
  top: el.offsetTop,
  behavior: 'smooth'
})
```
window.scrollTo(0, 0);
```

document.documentElement.scrollTop = 0;

3.设置了 overflow ，怎么将页面的 某个内容滚动到顶部

<template> 
    <div class="container" ref="container" style="overflow: auto;"> <!-- 页面内容 --> 
    </div> 
    <button @click="scrollToTop">返回顶部</button> 
</template> 
<script>
export default {
methods:
{ 
    scrollToTop() { 
        const container = this.$refs.container;
        container.querySelector('.content').scrollIntoView({ behavior: 'smooth' }); 
       } 
      }
} 
</script>

4. 插件 scroll-into-view-if-needed

import scrollIntoView from 'scroll-into-view-if-needed'
 const content2 = this.$refs.content2;
 scrollIntoView(content2, {
    scrollMode: 'if-needed',
    block: 'start',
    inline: 'start',
  })