<style type="text/css">
.parent{ width:100px; height:100px;border:1px solid #f00; overflow:hidden; position:relative;}
.sonF{ position:relative;}
.son{ width:100px; height:100px; position:absolute; left:0;top:0;}
p{margin:0;padding:0;}
</style>
</head>
<body>
<div class="parent">
<div class="sonF">
<div class="son">
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>bbbb</p>
<p>bbbbb</p>
</div>
</div>
</div>
<style type="text/css">
.parent{ width:100px; height:100px; position:absolute; border:1px solid #f00;}
.son{ width:100px; height:100px;left:0;top:0; overflow:hidden; position:relative;}
p{margin:0;padding:0;}
</style>
<div class="parent">
<div class="son">
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
<p>aaaaaaaaaaaaaa</p>
</div>
</div>
