Oh, sprites on buttons! Interesting!
Thanks for the positioning reference this works for the background but sprites are moved according to the container size (my background is usually on contain, because I want to see it all, but sprites take the whole container size rather than staying on the background, obviously).
My current workaround is to set a fixed aspect ratio but I'll investigate other solutions as well
#tuesday {
aspect-ratio: 1 / 1;
height:auto !important;
}