font size in em scss loop from 1em to 4 em

font-size.scss

/**
  this snippet is handy when u need to use font sizes in em 
  
  this will compile to css like this

  .fz-0-1em {
    font-size: 0.1em;
  }

  and it will loop through to

  .fz-4em {
      font-size: 4em;
  }
*/

@for $i from 0 through 4 {
  @for $j from 0 through 9 {
    @if($j == 0) {
      .fz-#{$i}em {
        font-size: #{$i}em !important;
      }
    }@else {
      .fz-#{$i}-#{$j}em {
        font-size: #{$i}#{'.'}#{$j}em !important;
      }
    }
  }
}

nice. thanks for sharing.
i will use this in https://github.com/framevuerk/framevuerk/tree/v2