If you look at the error message you are seeing when running the tests, it says: #Layout 1. The element should responsively resize, relative to the width of its parent element, without exceeding its original size. AssertionError: Try using the “max-width” style property : expected ‘none’ to not equal 'none’
It tells you exactly how to fix the error.
Also, you should understand that you need to create your own tribute page and not just a copy of the sample which was provided.