General UI/UX Notes

Fitts’s 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)