Horizontal scrollbar not present in interfaces table when needed

[candlerb]

NetBox version

v3.0.7

Python version

3.8

Steps to Reproduce

On a Macbook Pro Retina 13" (screen resolution 2560x1600) with Chrome as the browser:

1. Open a device
2. Go to the "Interfaces" tab
3. Ensure a reasonable quantity of columns are enabled
   • I have Name, Parent, Enabled, Type, MAC Address, Description, Mode, Cable, Connection, IP Addresses, Management Only, Label, LAG

Or: simply shrink the width of the browser window a bit.

Try this both with the left-hand navigation pinned open and closed.

(Note: the set of columns I have selected works fine when docked to an external monitor. The problem arises when I'm running the laptop standalone on its internal screen, so the browser window has been resized to fit that)

Expected Behavior

If the columns contain too much data to fit, there should be a horizontal scrollbar.

Observed Behavior

No horizontal scrollbar is present. Right-hand section of the page containing buttons is truncated; I have no way to reach the right-most buttons.

With side nav closed:

With side nav open:

You can see the vertical scrollbar is there, but not horizontal one.