The camera is zoomed in really far on the WebGL build, this is probably caused by your canvas not being set to resize or you having the game set as too small in the Itch.io game window settings.
alright played the windows build a high score of 167 lol, maybe you should have the things you need to jump over spawn at random intervals because right now if you just hit space every 4 seconds forever you win, another way to do this and have the game gradually get harder would have your player character start off moving slower and then gradually accelerate as the game continues! Great start though!