convert-css-length
Convert between css lengths e.g. em->px or px->rem
Conversions between em, ex, rem, px are supported. PRs welcome if you need support for more esoteric length units.
Note: algorithm was originally ported from Compass
Install
npm install convert-css-length
Usage
; // Set the baseFontSize for your project. Defaults to 16px (also the// browser default).var convert = ; // Convert rem to px.;// ---> 21px // Convert px to em.;// ---> 1.42857em // Convert em to pixels using fromContext.// em(s) are relative to the font-size at the same element. If you're setting an em on a element whose font-size// is different than the base font size, you'll need to pass that font-size as the third parameter.// Or just use rem instead which sizes everything relative to the base node.// ---> 14px