GitHub - coliff/bootstrap-rfs: Easy-to-add CSS for adding Responsive Font Sizes (RFS) to Bootstrap 4
css-responsive-font-size - Codesandbox
css - change the font - size responsive design - Stack Overflow
GitHub - seoyoochan/Font-Size-Responsive-CSS: Adjustable font size via css media queries. Keep text with proportional size on different screens. Scale to minimum readable size.
Adactio: Links—Fluid Type Scale - Generate responsive font-size variables