Did you try to scroll down on the main big window (above the line). This is a known problem and I'll fix it on an a future release. Let me know if it works!
Hi Kirby, I think I have identified the problem! Most likely your browser doesn't support WebGL (maybe it's not been updated for a while) as you can verify clicking here: get.webgl.org
I have now updated the game and it should work for you :) Let me know if it does!