Hero Image Hides Drop Down Menu

Hi,

I am using the new Hero Image Widget from SO. I have a dropdown menu on top. When I insert the hero image right below the header, and hover over the menu, the menu gets hidden behind the hero image. How can I “send the hero image to back” so that the menu dropdown with show in front of it?

Thanks!

PS. I’m developing in my localhost. Don’t have a public URL yet. Can send a screen shot if you need.