<!DOCTYPE html>
<html lang='zh-cn'>
<head>
<title>Insert you title</title>
<meta http-equiv='description' content='this is my page'>
<meta http-equiv='keywords' content='keyword1,keyword2,keyword3'>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type='text/css'>
.reset { padding-left: 20px; counter-reset: wangxiaoer; font:400 16px/1.2em Courier New; }
.counter:before { content: counters(wangxiaoer, '-') '. '; counter-increment: wangxiaoer; }
</style>
</head>
<body>
<div class="reset">
<div class="counter">我是王小二
<div class="reset">
<div class="counter">我是王小二的大儿子</div>
<div class="counter">我是王小二的二儿子
<div class="reset">
<div class="counter">我是王小二的二儿子的大孙子</div>
<div class="counter">我是王小二的二儿子的二孙子</div>
<div class="counter">我是王小二的二儿子的小孙子</div>
</div>
</div>
<div class="counter">我是王小二的三儿子</div>
</div>
</div>
<div class="counter">我是王小三</div>
<div class="counter">我是王小四
<div class="reset">
<div class="counter">我是王小四的大儿子</div>
</div>
</div>
</div>
</body>
</html>