AJAX之DropShadow控件

  <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <div>
            <asp:Panel ID="Panel1" runat="server" BackColor="#C0C0FF" Height="63px" Width="167px">
                <br />
                <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox></asp:Panel>
        </div>
        <cc1:DropShadowExtender ID="DropShadowExtender1" runat="server" Opacity="0.5" Rounded="True"
            TargetControlID="Panel1" TrackPosition="True" Width="10">
        </cc1:DropShadowExtender>
    </form>