After following, you can keep track of his dynamic information in a timely manner
Courses in the relevant section：Common tags and attributes in HTML (text font formatting)
<em></em>斜体标签 和<i></i>一样 <del></del>横线标签
2019-01-120个赞
Courses in the relevant section：Common tags and attributes (hyperlinks) in HTML
a链接，设置回到顶部方法，通过设置锚点方式 <a href="top">页面顶部</a> <a href="" id="top">回到顶部</a>
2019-01-120个赞
Courses in the relevant section：Common tags and attributes in HTML (list)
伪元素before 无序列表添加图标 :before{content:url();}
2019-01-130个赞
Courses in the relevant section：Border styles in CSS
内部阴影： box-shadow:x轴 y轴 阴影宽度 inset
2019-01-130个赞
