Hello,
with my page I am using a hamburger icon in order to open an overlay right. I have not tested overlay left/center.
1. Within gridbox editor, the overlay goes beyond top & bottom of the workspace.
2. Within gridbox editor, there is margin-right applied with overlay right @Laptop viewport.
3. Within gridbox editor, footer text will be above overlay @Tablet Landscape viewport.
Within the overlay, I have placed my main menu with 3 levels collapsed
4. Level 1 menu item icon for submenu is pointing downwards, while submenu is closed. Shouldn't it point to the right and rotate downwards, when submenu expands?
5. Level 3 menu item will open with level 2 and behaves strange upon click. It will leave an empty gap when collapsed
Stay safe.