Convert between px, rem, em, vw, and vh.
Choosing the right CSS unit is crucial for creating **responsive and accessible websites**. Each unit has a unique relationship to the page, and understanding their differences can save you from layout headaches.
<html>
). This makes it great for responsive typography, as changing one value at the root affects the entire page.1vw
is 1% of the viewport width, and 1vh
is 1% of the viewport height. They are excellent for creating elements that scale proportionally to the screen size.