Color change of the active menu parent item

How to change background color on active menu parent item when its' submenu is opened?

I managed to change the submenu background color in css, but I want the parent menu item to be the same when opened (active). Is there a way to do that?

HI
the first word to start a discussion would be "hello"...
you can use the class ".active" in css to get the active items.
CEd