I am trying to make a custom css file for this theme.
However, I have noticed that when I collapse the width of the site while dragging the browser window, the side menu just keeps getting smaller and never disappears. At smart-phone size, it just looks ridiculously thin.
I am under the impression that until recently, this didn't happen... Before, if I dragged the window smaller (simulating a smart-phone screen) it would get to a point where the side menu would disappear from the right and appear under the page content instead.
I might be confusing this with another theme.
... However, how can I control when a menu (or other element) disappear when the browser window is collapsed (dragged thinner) please?
Would appreciate any help you could offer me.