The game board layout can get a bit messed up on smaller screens. Try maximizing the window and refreshing. I'm working on making the website as responsive as the actual Windows 8 app.
Chrome 28.0.1500.95 on Linux. Actually, I did reload (same size window) and it is mostly visible now. Could definitely still use some more space though. In any case, it's a minor complaint. The game is still fun! :)