I'm using Ubuntu 19.04 and tried both Chrome Version 76.0.3809.100 (Official Build) (64-bit) and Firefox 68.0.2. This is the behavior I'm getting:
Notice that after a window has be shrunk and resized back again, this section disappears:
After it is pushed down due to window resize, it doesn't pop back up when window is resized back.
Notice that after a window has be shrunk and resized back again, this section disappears:
After it is pushed down due to window resize, it doesn't pop back up when window is resized back.