I applied a off canvas drop-down menu for my site. When having the mobile screen size in landscape the drop down are not visible any more! They appear to be behind the "canvass".
I tried to fiddle around finding a solution by applying a z-index but that did not help me much. Now I am stuck on this! Can any one please have a look and give me a hint where to look for? Thanks that would be great!
This is the site: www.menes2.h-kracht.nl