Menu DropDown Help

Hello

I would be extremely grateful for some help with finding/ implementing a plugin.

I need to create a drop down menu like the one here in this website: http://www.cannonhygiene.com/

Basically, the drop down menu needs to offer 30 -40 pages in one view and spread across the width of the page. Every template I seem to find doesn’t use this, and every plugin I’ve tried doesn’t seem to offer this functionality.

Any help will be greatly appreciated.

Best regards
John

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