限制div高度，内容多了显示滚动条
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml”>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
<title>限制div高度，内容多了显示滚动条</title>
<style type=”text/css”>
div{ border-radius:5px;border:1px solid red;padding:10px;}
#test{min-height:250px;overflow-y:auto; max-height:300px;}
</style>
</head>
<body>
<div>
</div>
</body>
</html>