Forum:Custom Tabber code

Does anyone know the correct code to use to customize the tabs in the   tag?

Here is where put the demo and the coding I tried to use. -- 11:48, October 30, 2012 (UTC)
 * Hi.


 * Maybe this forum can help you.—  12:00, October 30, 2012 (UTC)
 * Yeah, I tried pasting that code into the Wikia.css. It's not working. -- 14:31, October 30, 2012 (UTC)