I'm working on a prototype intranet site using the Headline theme. After getting some way into development, I noticed I've lost the styling and function on the sub menus of the main navigation. On the pre-production site, the sub menu items are indicated by a simple arrow that expands right — and continues to expand right — on mouse over.
An earlier version of the prototype site — and the Headline Quickstart site —looks and functions differently. The sub menu are indicated by boxed arrows that change color on mouse over. They also collapse on themselves on mouse over instead on expanding out.
What might be causing this?
I've included two images to show exactly what I'm referring to. The site on the left is the pre-production site, the one on the right is an earlier version that is functioning properly.