When I display this page in Opera 9.50, the size of the textarea is not adjusted to 520px
Code:
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<CE:Editor ID="edText" runat="server"
Height="520px"
AutoConfigure="Simple">
</CE:Editor>
</div>
</form>
</body>
</html>
Screenshot: