Different CSS for Multiple Comboboxes?

[2plus2]

We have three different combo boxes on a page and we want them to be styled differently. We have the primary select/text box formatted differently, but the panels used for the drop down options all inherit the same CSS. Is there a way to style each of the combo box's drop down options independently?

e.g.
combobox #1, white text blue background on drop downs
combobox #2, white text green background on drop downs
combobox #3, red text gray background on drop downs

[jarry]

Please try to add a class to the drop-down panel when open it.

Code:

$('#cc').combobox({
	onShowPanel: function(){
		$(this).combobox('panel').addClass('c1')
	}
})

[2plus2]

Thanks. Much appreciated.