Grats on your submission! The background doesn't scale to fit the canvas if the size changes - I think this is an issue with Godot default web exports. You might want to try this export page instead: https://github.com/godotengine/godot/blob/master/misc/dist/html/fixed-size.html

That said, I liked the atmospheric music and the UI felt sharp! I... forgot how to feed fish for a while, but I think they're eating happily now.