Generated by SassMeister.com.

input.scss

@mixin highlightedPriceHeaders($size: 45px){
    @for $i from 1 through 6{
        h#{$i}{
            @if $i == 2 {
                font-size: 37px;
                $size: 40px;
            } @else {
                font-size: calc(#{$size} - #{($i - 1) * 5}px);   
            }
            white-space: nowrap;
            line-height: inherit;
            margin: 0;
        }
    }
}

* {
    @include highlightedPriceHeaders();
}

output.css

* h1 {
  font-size: calc(45px - 0px);
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}
* h2 {
  font-size: 37px;
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}
* h3 {
  font-size: calc(40px - 10px);
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}
* h4 {
  font-size: calc(40px - 15px);
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}
* h5 {
  font-size: calc(40px - 20px);
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}
* h6 {
  font-size: calc(40px - 25px);
  white-space: nowrap;
  line-height: inherit;
  margin: 0;
}

settings.json

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