为Modal Popup添加美观的玻璃边框（add a glass border to your Modal Popup）

Thanks Deva to provide the code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>

<!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 runat="server">
    <title>Untitled Page</title>
    <style>
        .yourDivCSS
        {
            background:white;
        }
        .Modalpopup
        {
            position:absolute;
            z-index:-1;
            left:-15px;
            top:-15px;
            color: Black;

            border: 15px solid gray;
            background-color: White;
            opacity: 0.8;
            filter: alpha(opacity=80);
        }
        .modalBackground
        {
            background-color: White;
            opacity: 0.01; /* Safari, Opera */
            -moz-opacity: 0.01; /* FireFox */
            filter: alpha(opacity=1); /* IE */
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>

        <asp:LinkButton ID="LinkButton1" runat="server">LinkButton</asp:LinkButton>
        <cc1:ModalPopupExtender ID="ModalPopupExtender1" TargetControlID="LinkButton1" PopupControlID="Panel1" runat="server"
                                BackgroundCssClass="modalBackground">
        </cc1:ModalPopupExtender>
        <asp:Panel ID="Panel1" runat="server">
            <div class="yourDivCSS" style="width:200px; height:200px">
                devanand dhage
                <%--<asp:LinkButton ID="LinkButton10" runat="server">open panel popup</asp:LinkButton>--%>
            </div>
            <div class="Modalpopup" style="width:200px; height:200px">
            </div>
        </asp:Panel>

        <%--<cc1:PopupControlExtender ID="PopupControlExtender1" TargetControlID="LinkButton10" PopupControlID="Panel2" runat="server"
                                Position="Right">
        </cc1:PopupControlExtender>
        <asp:Panel ID="Panel2" runat="server">
            <div class="Modalpopup">
                Hi this is my popup
            </div>
        </asp:Panel>--%>
        <br />
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    </div>
    </form>
</body>
</html>