How Can I achieve this ?

[Suvankar]

I want to know how to add custom css class into server side control. Let's say I want to create a navigation like stackoverflow. For this I am using Telerik's radmenu control. Now here is the problem

Please find attached file 1.png

As in RadMenu I cannot specify class -list or -item.

<telerik:RadMenu runat="server" ID="rm_menu_e2c" CssClass="HowToAddHere"></telerik:RadMenu>

But I have to inject the style to get result. How can I achieve this ?