如何使iframe透明
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>父页面</title>
</head>
<body bgcolor="#FF0000">
<iframe src="index.htm"? allowTransparency="true"></iframe>
</body>
</html>
?
?
?
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>子页面</title>
<style type="text/css">
body
{
??? background-color: transparent;
}
</style>
</head>
<body>
</body>
</html>