align center not working

<asp:Panel ID="panel1"  Width="386px"                 Height="105px" runat="server">                 <p style=" text-align: center;" align="center">                     <asp:Label ID="label1" runat="server" Font-Size="Small" ForeColor="DarkRed" Width="380px"                         Font-Bold="True" Style="z-index: 125"></asp:Label>                     <br />                     <br />                     <asp:Button ID="Ok" runat="server" Text="Ok" />&nbsp;</p>             </asp:Panel>

i open the above in modal popup but the lable & button appears to the left insted of center