Background image not applying to one div on Chrome for Mac

I have a website hosted on GitHub pages here: https://justinjiaxinghu.github.io/tsm-analysis/

On windows Chrome the bottom div with the filtering buttons is integrated nicely where it's background is the dark grey background as set in the wrapper div. However on Mac Chrome it shows that the buttons are part of a pure white div where the background image is not applying. Any reasons as to why this is happening?