class row_selectable

Hello !

What is exactly the class "row_selected" used in this example : http://www.datatables.net/beta/1.9/examples/server_side/select_rows.html ?

In fact, I cannot find it anywhere in the CSS files !

How can I modify it ?

Additionally, when I replace the "row_selected" class in the example provided by another local class I created, it's not working at all !

Thanks a lot for your help !!!! I'm working on it for hours !!!!