I have the same issue Dan does, needed to significantly zoom out my browser window for the game to fit. Played this on a desktop.
Fairly solid memory game with cute artwork. The slow flipping speed, especially in comparison to how quickly the cards are dropped into the play area, gets frustrating after a while.
It feels a little dreary though without sound or music playing. Things could also be a little juicier if the cards had some response to the mouse hovering over them in some way.
Best score was stuck at ~ for me forever.
Not a bad start