Generated by SassMeister.com.

input.scss

// @use "sass:math";

@mixin font-size($size: 16, $line: 1.5) {
  font-size: $size * 1px;
  font-size: ($size / 16) + rem;

  @if $line < 4 {
    line-height: $line;
  } @else {
    line-height: $line / $size;
  }
}

body {
    @include font-size(10, 16px);
}

output.css

body {
  font-size: 10px;
  font-size: 0.625rem;
  line-height: 1.6px;
}

settings.json

{
  "sass": {
    "compiler": "dart-sass/1.32.12",
    "extensions": {},
    "syntax": "SCSS",
    "outputStyle": "expanded"
  },
  "autoprefixer": false
}