Steps to reproduce the issue

Open existing or create new module.
Resize (desktop) screen to about half width but so that position list is still to the right of the editor, not below.
Click the Position drop-down menu to view list of module positions

Expected result

Readable module positions

Actual result

Difficult-to-read module positions due to 100px right padding after module position name with a min-width set at 640px, which is too narrow and possibly not necessary.

System information (as much as possible)

Viewing on J4.0 Alpha 7-dev
The browser inspector says it's in a file called /media/vendor/choicesjs/css/choices.min.css.
I have found choices.css in the site folders and the code in question is on line 260:

@media (min-width: 640px) {
  .choices__list--dropdown .choices__item--selectable {
    padding-right: 100px;
  }

Changing the padding to 10px makes the module names readable again but the "Press to select" text (data-select-text) now overlaps the module name:

Additional comments

I'm afraid that suggesting a code change to make the data-select-text wrap below the module name is beyond me, but is this text really necessary? What else would you do to select a position? You don't say "Press to select" on other menus (as far as I've noticed).