This is what I read in the article: 1. Use vw units (percentage of viewport width) for fontsize; so fontsize is linearly dependent on vw. This is usual respons

This is what I read in the article: 1. Use vw units (percentage of viewport width) for fontsize; so fontsize is linearly dependent on vw. This is usual responsive design. 2. Can set up non-linear font-size scaling with css calc. 3. Plea to open up the easing functions to arbitrary units, not just time.