Somehow, here on Meta stack exchange, the drop down for the site selection is slightly more on the left than on other sites I visit (SO and Arqade mainly).
Nothing like screenshots with hand-drawn circles to show what I mean :
Notice the slight difference on the last picture. My bookmarks from Firefox aren't moving.
It might be designed as such but it felt strange when changing tabs from here to SO or Arqade. I can't tell why as on Arqade, I have about as much rep as here, so it doesn't seem the rep size or not having the review link matters.