What is the difference between rem and em?

rem is relative to the root font size (html element), while em is relative to the parent element's font size. rem is more predictable for layouts.

CSS Unit Converter

Quickly convert between CSS units like pixels (px), rem, em, points (pt), and more. Set your base font size for accurate rem/em calculations.

What is the difference between rem and em?: rem is relative to the root font size (html element), while em is relative to the parent element's font size. rem is more predictable for layouts.

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