mastoradio-fork/src/assets/scss/1-core/_00-mixins.scss

// --------------------------------------------------------------
// == mixins */
// --------------------------------------------------------------
@use 'sass:math';

@mixin flow($font-size, $bf: $base-font, $lh: $line-height) {
  $lh-value: $base-font * $lh;
  $coeff: ceil(math.div($font-size, $lh-value));
  $new-lh: math.div($lh-value, $font-size) * $coeff;
  $margin-bottom: math.div($new-lh, $coeff);

  margin-bottom: $margin-bottom + em;
  font-size: math.div($font-size, 10) + rem;
  line-height: $new-lh;
}