<hr /> 标签可以在 HTML 页面中创建水平线，通常用来分隔文章中的小节
<!DOCTYPE HTML><html><body><p> This is a paragraph </p><hr /><p> This is a paragraph </p><hr /><p> This is a paragraph </p></body></html>
效果如下：
This is a paragraph
This is a paragraph
This is a paragraph
HTML 水平线
原文地址：https://www.cnblogs.com/pzk7788/p/10347630.html