We have a problem with a g5_helium theme on Grav.
The drop-down menus which appear when you hover over the navigation are very long for some of our menus. On short pages the bottom of the menu drops below the bottom of the screen, but the menu has no scroll bars to enable us to access the lower items.
Does anybody have any advice on how to code scroll bars into the drop down menus and where to add it within Grav?
The problem is well described in this page: https://css-tricks.com/long-dropdowns-solution/ but that is from 2009.
Is there a simple way within Grav to fix this problem ?