Website Responsive

How do I make my page links in my nav menu responsive so when I to for example 1920px breakpoint it’s bigger and when I go mobile it’s smaller? I want it responsive like the skull image I have right now on the right side. Thanks.

https://preview.webflow.com/preview/jaxnlavell?utm_medium=preview_link&utm_source=designer&utm_content=jaxnlavell&preview=3183474e2430771dbf55c889084336e4&workflow=preview