Steps to Reproduce

mobile devices (both iphone and android)

Step1: open menu

Step2: slide to the left

Current Result

1. menu slide away (not fixed)
2. the grey area covers the menu

Expected Result

1. menu fixed
2. grey area does not cover the menu (covering = unable to choose from menu)

Debug Information

mainContainer

{ overflow: auto }

Creates a horizontal scrollbar
 

Workaround