
Gabriel F. answered 11/26/19
Full stack Javascript Engineer
Hi there. Anything related to page styles (such as page responsiveness) should be done via CSS. Even if you use javascript or jQuery to style the page you still need to use javascript/jQuery CSS methods. That said, I'd suggest that you write the responsive styles in a .css file using media queries as it should be done. jQuery should be used mainly to handle users interactions with the page, ajax requests, and page animations.
I hope this helps.