Fitts’s Law
https://en.wikipedia.org/wiki/Fitts%27s_law
Fitts’s law is a predictive model of human movement primarily used in human–computer interaction and ergonomics. This scientific law predicts that the time required to rapidly move to a target area is a function of the ratio between the distance to the target and the width of the target
- Should typically have 1-3 font sizes. (Heading, Subheading, Body)
- Typical screen sizes (from Bootstrap):
- xs — for screens less than 768px (phones)
- sm — for screens =< 768px (tablets)
- md — for screens =< 992px (small laptops)
- lg — for screens =< 1200px (big screens)