<!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=gb2312" />
<title>div在下拉菜单之上</title>
<style type="text/css">
div{ position:absolute;top:100px;left:100px; z-index:2;height:200px; width:200px; background:#f0c}
iframe{ position:absolute;top:0;left:0; z-index:1; background:#cf0}
select{width:100%}
</style>
</head>
<body>
<div></div>
<iframe>1212</iframe>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
<select><option></option></select>
</body>
</html>
提示：您可以先修改部分代码再运行</div>
本文主要包含div css下拉菜单,div css导航下拉菜单,div css下拉框,div css二级菜单,div css菜单等相关知识,佚名 希望在学习及工作中可以帮助到您