<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <style type="text/css">
       body,div,form{
           padding:0px;
           margin:0px;
       }
       .con{
           position:fixed;
           height:230px;
           width:300px;
           left:50%;
           top:50%;
           margin-left:-160px;
           margin-top:-115px;
       }
    </style>
</head>
<body class="bgblue" >
    <div class="con">        
        <form class="form-signin-ga" runat="server">
            <img src="asset/images/warning.jpg" />
            <h3 >您没有该权限</h3>
        </form>        
    </div>
</body>
</html>