在pc端运用overflow-x: scroll;滑动失效,移动端能正常使用
```html
<div style="width: 900px;height: 300px;overflow: hidden;">
<div style="display: flex;flex-wrap: nowrap;overflow-x: scroll;">
<div v-for="(item,index) of Nav" :key="index" :class="{active:currentIndex==index}" @click="getclick(item,index)" class="ItemLiat">
{{item.title}}
</div>
</div>
</div>
```