I’ve used some CSS to modify the slideout menu for replacing WordPress standard menu items with Social Media icons. It works perfectly, but when the screen is not high enough to show the whole slideout menu, the scrolling in the menu does not work to the bottom. It ends above the Social Media icons line.
A different breakpoint doesn’t help. If the slideout menu is higher than the screen, then the Social Media icons are out of sight and the scrollbar does not work until I can see them (I’m using an Android phone).