<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
#container {
width: 960px;
margin: 0 auto;
}
#container iframe {
opacity: 0.5;
}
</style>
</head>
<body>
<div id="container">
<iframe src="http://www.jd.com" width="960" height="800"></iframe>
</div>
<textarea rows="10" cols="50"></textarea>
</body>
</html>-
jackfrued authored0c25a31f