I have found that the "expand" references do not display. As in https://www.whonix.org/wiki/VirtualBox where it states:
3) Import Whonix into VirtualBoxFor Whonix VirtualBox import instructions, please press on expand on the right.
Did you zoom in too much?
In Firefox browser for example: View -> Zoom -> Reset
No. Tried to zoom out, but nothing. Tried Chromium, and it displayed right away.
Tried again in Firefox. Zoomed way out and found them. However, they do disappear in normal view and there is no horizontal scroll bar.