I wrote a function that enables you to make an editor text component have responsive font size. It uses vw units. It means the text changes size when changing the size of the browser window.
1 vw = 1% of viewport's width
I think it can also work with em units.
I made this website that has a documentation page I wrote for this. (keep in mind I'm a designer and amateur wix code programmer :) But I think it could be useful for a lot of people)
This is the link: