<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
a:hover {
color: red;
}
a:visited {
color: green;
}
p:first-line {
color: red;
}
p:first-letter {
color: blue;
font-size: xx-large;
}
</style>
</head>
<body>
<div class="one">
<a href="http://www.cnblogs.com" >这是一个测试伪类的链接</a>
</div>
<div class="two">
<p>这是一句测试伪元素的文本</p>
</div>
</body>
</html>
