There seems to be a browser (or maybe monitor?) bug where the game is opened in a larger window and the frame doesn't stretch around it as intended. In that case it should be possible to manually resize the window. I just added a note in the description so hopefully people see it before playing.
Thank you for playing and appreciate the jump recommendations! None of us had any programming experience before this so everything in the game is what we learned this weekend. :) After the voting is over, we may go back and update a few things as we learn more!