PostCSS plugin for adding modular scale to your styles
JavaScript
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README.md

PostCSS Modular Scale

A plugin to provide a modular scale function in your styles.

Install

npm install postcss-modular-scale

Usage

To generate relative values use target / base font size

Example:

1 = 16px ( target ) / 16px ( base font size )
0.75 = 12px ( target ) / 16px ( base font size )
Generates `em` or `rem` relative values

Input

:root {
  --ms-bases: 1, 0.75;
  --ms-ratios: 2;
}

.header {
  font-size: ms(4)rem;
}

Output

:root {
  --ms-bases: 1, 0.75;
  --ms-ratios: 2;
}

.header {
  font-size: 3rem;
}

Mad props

Tons of thanks to Scott Kellum @scottkellum & Tim Brown @nicewebtype for making Modular Scale and the libraries that make this plugin possible.