使导航下拉显示高于所有其他divs

I have a page I'm working on where currently I have 2 items. Item 1 is a flexnav jQuery navigation menu with a dropdown. Item 2 is a slick jQuery div scroller. I am trying to position the slick scroller just below the flexnav menu. The problem I'm running into though is when you hover over one of the menu items the dropdown for the sub menu is covered up by the slick scroller divs. This only seems to be happening with a screen larger than 800px as the flexnav plugin changes to a mobile friendly navigation menu on small screens. I have a page I'm working on where currently I