Review my Pomodoro Sand Clock, please!

Feel free to criticize it.
Click Pomodoro Sand Timer

Very neat! The hourglass is a really impressive touch. Everything works really well, unless I use Safari. Then I get an error in the console saying there’s a missing ) somewhere. I couldn’t see anything missing, and I even copied the code into SublimeText, but that didn’t show me anything either. It’s Safari so… who knows?

haha thank you!. Well, I do not have safari but will find out how to test it on it.