In the "Styles" dropdown, each item has the style of the style that's to be applied when that item is clicked. In my case that's a problem:
Some items are white on white == invisible.
How to make sure that all items in the "Styles" dropdown are black on white? (And they all should have the same standard/default font and the same font size.)
(More info on http://dev.ckeditor.com/ticket/6379 .)
Invisible dropdown items ("Style" menu)