I have made a website for my drawings at www.digitalthangka.com, but I encounter a problem.
I use a navbar with a dropdown menu. When I am at a page with a javascript gallery, the menu is disappearing behind the images of the gallery.

Example:
  1. Go to my website at www.digitalthangka.com
  2. Click on the tab Collection
  3. Hover over the tab aftfer the page has loaded: the dropdown disappears behind the image.


This problem occurs with all the gallery stuff (independant of the type of gallery - e.g. choose an item from the dropdown menu, hover over Collection. Same result.

Anyone? Thanks in advance!