W3schools: PX to REM Converter

The Battle of the Units: PX vs REM vs EM px to rem

The rem unit is like the em unit, except it's always a multiple of the font size on the root node, the html> element It ignores any inherited

pxj888 What is rem? Rem stands for root element's font-size It is a relative unit of CSS and is translated by the browser to pixels  Final notes · Use preprocessors to abstract the calculations using a px to rem converter function · Use em only for sizing that needs to scale While PX, EM, and REM are primarily used for font sizing, %, VW, and VH are mostly used for margins, padding, spacing, and widthsheights

เด โม The Difference Between Rem Em and Px CSS