<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>删除样式</title>
<style type="text/css">
.oldPrice{text-decoration:line-through;}
</style>
</head>
<body>
<p>原价：<span class="oldPrice">300</span>元 现价：230 元</p>
</body>
</html>done
