感谢您的支持，我会继续努力的!
打开微信扫一扫，即可进行扫码打赏哦
点我查看本站打赏源码！
Powered by RUNCODEX.COM，学的不仅是技术，更是梦想！！！
<!DOCTYPE html>
<html>
<head>
<style>
p:before
{
content:"Read this -";
background-color:yellow;
color:red;
font-weight:bold;
}
p:after
content:"- After this";
background-color:darkgray;
</style>
</head>
<body>
<p>My name is Donald</p>
<p>I live in Ducksburg</p>
<p><b>Note:</b> For :before to work in IE8, a DOCTYPE must be declared.</p>
</body>
</html>
输入 JavaScript 代码……
xxxxxxxxxx
输入 CSS 代码……
