Generated by SassMeister.com.

input.scss

@mixin font-size($size, $important: false) {
    font-size: $size isImportant($important);
}

@function isImportant($important) {
    @if $important {
        @return '!important';
    } @else {
        @return '';
    }
}

.red {
    @include font-size(12px);
}
.blue {
    @include font-size(14px, true);
}

output.css

.red {
  font-size: 12px "";
}

.blue {
  font-size: 14px "!important";
}

settings.json

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