Tell us what’s happening:
I have added the animation-timing-function for both ball1 and ball2, linear and ease-out respectively. That is what the challenge asks for yet it continues to give me an error message. The website even works just as it is supposed to with the balls arriving at the bottom at same time. Is this a bug of sorts?
I have tested your code in my browser, and it passes the tests. Therefore, it is likely one of the following issues for you:
Your browser/version is not entirely compatible for this challenge (it happens). Solution: Do the lesson in a different browser.
You have a browser extension which is blocking the tests from being run properly. Test: Look in your development console (Ctrl+Shift+i (for Chrome)), find an error. Solution: disable extension for the tests.
I’m having the exact same issue in the “Decrease Opacity” section. I’ve tried 5 browsers and even went on to complete the module without receiving any similar errors. I’m on my 2nd day now troubleshooting this so I can get my bloody checkmark lol