Responsive Fylo Data Storage - SASS, Flexbox

Hello everyone, I struggle a bit aligning the flex items, and with the dimensions, but I'm proud of how it looks in the end.

My question is about the range slider, after I wrote the custom CSS, it lost it's functionality. During my research, it stated that that's just what happens in -webkit browsers. So I have to resort to JS to get it to work again?

I also ran into issues with the background-image for the desktop design, I added background-position: top; to get it to stretch the full vh, but when I opened the dev tools, it still had whitespace in the top-right corner.