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1.1.1 • Public • Published

SASS @font-face mixin

A simple mixin to load your fonts without the @font-face boilerplate.


  1. yarn add @nagman/sass-fontface

  2. Rename your fonts following this format: name-weight-style.woff, and put them in a folder in your project:

└── fonts
  ├── foobar-400-normal.woff
  ├── foobar-400-normal.woff2
  ├── foobar-400-italic.woff
  ├── foobar-400-italic.woff2
  ├── foobar-700-normal.woff
  └── foobar-700-normal.woff2
  1. Import the mixin into your SCSS code:
@import "@nagman/sass-fontface/mixin";
  1. Include fonts by providing every variant of it:
@include fontFace( 
  $name: "foobar", 
  $variants: (
    (weight: 400, style: normal), 
    (weight: 400, style: italic),
    (weight: 700, style: normal)
  1. Enjoy your webfonts:
html {
  font-family: "foobar"sans-serif;
strong {
  font-weight: 700;
em {
  font-style: italic;


@font-face {
  font-family: "foobar";
  src: url("/fonts/foobar-400-normal.woff2") format("woff2")url("/fonts/foobar-400-normal.woff")
  font-weight: 400;
  font-style: normal;
  font-display: swap;
@font-face {
  font-family: "foobar";
  src: url("/fonts/foobar-400-italic.woff2") format("woff2")url("/fonts/foobar-400-italic.woff")
  font-weight: 400;
  font-style: italic;
  font-display: swap;
@font-face {
  font-family: "foobar";
  src: url("/fonts/foobar-700-normal.woff2") format("woff2")url("/fonts/foobar-700-normal.woff")
  font-weight: 700;
  font-style: normal;
  font-display: swap;


The mixin takes 4 parameters:

  • $name: a name for the font. Will be used in your font-family properties ;
  • $variants: a list of variants for this font. Each item is a map with two keys:
    • weight: 100, 200, 300, 400, 500, 600, 700, 800 or 900 ;
    • style: normal, italic or oblique ;
  • $dir: the path to your fonts' files. This is optional and the default value is /fonts. You can end it with or without a trailing slash (it will be trimmed) ;
  • $swap: true or false. If true, it will set the font-display property to true.

Weights in numbers

Most of the time, your font file will be named like this: FooBar Regular.woff.

You must convert the Regular to a number in order for this package to work.

Find out which font-weight number corresponds to your font:

Font optimization

I highly recommend you to subset your fonts before serving them. They will load faster because they will only contain the characters you need.

You can do this with Transfonter.

Here are my recommended settings for French (remove the accented characters if you only want English):

  • Family support: On
  • Add local() rule: Off
  • Fix vertical metrics: Off
  • Autohint font: Off
  • Base64 encode: Off
  • Formats: WOFF and WOFF2
  • Subsets: leave blank
  • Characters: !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~¢£¥¨©«®´¸»ÀÂÆÇÈÉÊËÎÏÔÙÛÜàâæçèéêëîïôùûüÿŒœŸˆ˚˜–—‘’‚“”„•…‹›€™
  • Unicode ranges: leave blank


npm i @nagman/sass-fontface

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