How to change panel position in asp.net c# code behind

I have the asp.net script side code for a panel like:

     <asp:Panel ID="Panel1" runat="server"

       style="border-color: #99CCFF; border-style: solid; padding: 1px 4px; z-index: 1; left: 336px; top: 313px; position: absolute; height: 167px; width: 666px">