<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<style type="text/css">
a {
text-decoration:none;
}
:target {
background-color:red;
}
</style>
</head>
<body>
<p >
<h2>示例文字5</h2>
<p>...此处略去</p>
</div>
</body>
</html>
效果如下：