标签包裹核心内容，视觉上就清晰了。

我记得有一次，一位 SEO 专家来到我的工作室，查看了我的代码，并说我的方法对搜索引擎不友好。
He said that you should use the tag so that search engines can better understand the structure of your page. I was confused at the time, but I quickly changed when I returned.
Now I use the

tag, I feel the page structure is much clearer and the user experience is better. After using this tag on the page I built earlier, its ranking improved and its traffic increased. This time I finally realized that this tag is really useful for SEO.
此外，使用此标签创建的页面可以通过辅助技术（例如屏幕阅读器）更好地理解，这对于视障用户来说是一个很好的体验。

Oh, by the way, another advantage of using this tag is that it can distinguish between core content and auxiliary content. I had a plan before and the contact information was at the bottom of the page.我本来想把它放在第一位，但后来我想了想，决定使用