Can't pass the Layout test case for Random Quote Machine

The error : The #quote-box wrapper element should be horizontally centered. Please run tests with browser’s zoom level at 100% and page maximized.
Seems centred to me
Have tried everything I could

The element you put the #quote-box id on is a full-width element.

If you move the id to the .quote-box element it will pass the layout test. But you then have to move the button and link inside that element as well.