Libraries for responsive fonts?

Question

css

Essence of the question: there is a site, you need to add responsiveness to the fonts. I understand how to do this (through media queries), but I'm not a designer, so I don't want to write it myself - it will turn out crooked.
Are there any css libraries that SPECIFICALLY solve the problem of responsive typography (I understand that if you add bootstrap, then everything will work out). I found only JQuery plugins on the Internet, but here, in theory, you can get by with 50 lines of CSS.

Answer 1

And what prevents you from doing it through media-queries, for example:

@media only screen and (max-width: 20em) { 
h1 { font-size: 2rem; }
}
@media only screen and (max-width: 40em) { 
h1 { font-size: 3rem; }
}