Change link colours on different device sizes

Hi BSS users,

I need your help on how to make navigation link colours unique on each device size. Eg. Black on small devices and white on large devices.

You'll need to use some CSS to do this with media queries. If you are unfamiliar with how to use them I would highly suggest doing some tutorials on CSS as you will need some of the basics at the very least in order to get the most out of this app. :)