Chromium: Focus applied to CE, cursor hidden, unable to type. #545043
Firefox: Focus applied to CE, cursor shows, but Prior to ::after content (between ! and @). Typing inserts as expected. #1216239
Editable Content! Not Editable!
Chromium: Focus is applied to CE, cursor is at the right-most margin, but able to type. #545093
Editable Content! Not Editable!