Scale was off inside of the browser. We had the same problem and it was fixed for us by changing the Project settings Display -> Window -> Stretch -> Mode = "canvas_items" and then changing the Export settings of HTML -> Canvas Resize Policy = "Adaptive"
Liked the animation of the ingredient disappearing, really gave the impression the ingredients were being burned up in the ritual
It wasn't clear if location of each item was important or not
Really like the art, dust bunnies was hilarious!