It's easy to see.
Open: you cant see Left coming in from the side, as it's already there.
Close: you see Left going away to the side.
The Right side is consistent though. I imagine it is due to some sort of width tweening, doing it from the right side, so it's only noticeable on Left while opening? Not sure.
http://mobify.github.io/pikabu/
It's easy to see. Open: you cant see Left coming in from the side, as it's already there. Close: you see Left going away to the side.
The Right side is consistent though. I imagine it is due to some sort of width tweening, doing it from the right side, so it's only noticeable on Left while opening? Not sure.