Generated by SassMeister.com.

input.scss

@mixin generator($prefix, $properties) {
  // List of sizes to generate for each variant
  $sizes: [.25, .5, 1, 1.5, 3];
  
  // Loop through all of the sizes
  // use @for to access the current index
  @for $i from 1 through length($sizes) {
    $size: nth($sizes, $i);
    
    // Create the rule
    .#{$prefix}-#{$i} {
        @each $property in $properties {
            #{$property}: 1rem * $size;
        }
    }
  }
}

@include generator(ml, [margin-left]);
@include generator(mr, [margin-right]);
@include generator(mt, [margin-top]);
@include generator(mb, [margin-bottom]);
@include generator(my, [margin-top, margin-bottom]);
@include generator(mx, [margin-left, margin-right]);


@include generator(pl, [padding-left]);
@include generator(pr, [padding-right]);
@include generator(pt, [padding-top]);
@include generator(pb, [padding-bottom]);
@include generator(py, [padding-top, padding-bottom]);
@include generator(px, [padding-left, padding-right]);

output.css

.ml-1 {
  margin-left: 0.25rem;
}

.ml-2 {
  margin-left: 0.5rem;
}

.ml-3 {
  margin-left: 1rem;
}

.ml-4 {
  margin-left: 1.5rem;
}

.ml-5 {
  margin-left: 3rem;
}

.mr-1 {
  margin-right: 0.25rem;
}

.mr-2 {
  margin-right: 0.5rem;
}

.mr-3 {
  margin-right: 1rem;
}

.mr-4 {
  margin-right: 1.5rem;
}

.mr-5 {
  margin-right: 3rem;
}

.mt-1 {
  margin-top: 0.25rem;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-3 {
  margin-top: 1rem;
}

.mt-4 {
  margin-top: 1.5rem;
}

.mt-5 {
  margin-top: 3rem;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

.mb-5 {
  margin-bottom: 3rem;
}

.my-1 {
  margin-top: 0.25rem;
  margin-bottom: 0.25rem;
}

.my-2 {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.my-3 {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.my-4 {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.my-5 {
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.mx-1 {
  margin-left: 0.25rem;
  margin-right: 0.25rem;
}

.mx-2 {
  margin-left: 0.5rem;
  margin-right: 0.5rem;
}

.mx-3 {
  margin-left: 1rem;
  margin-right: 1rem;
}

.mx-4 {
  margin-left: 1.5rem;
  margin-right: 1.5rem;
}

.mx-5 {
  margin-left: 3rem;
  margin-right: 3rem;
}

.pl-1 {
  padding-left: 0.25rem;
}

.pl-2 {
  padding-left: 0.5rem;
}

.pl-3 {
  padding-left: 1rem;
}

.pl-4 {
  padding-left: 1.5rem;
}

.pl-5 {
  padding-left: 3rem;
}

.pr-1 {
  padding-right: 0.25rem;
}

.pr-2 {
  padding-right: 0.5rem;
}

.pr-3 {
  padding-right: 1rem;
}

.pr-4 {
  padding-right: 1.5rem;
}

.pr-5 {
  padding-right: 3rem;
}

.pt-1 {
  padding-top: 0.25rem;
}

.pt-2 {
  padding-top: 0.5rem;
}

.pt-3 {
  padding-top: 1rem;
}

.pt-4 {
  padding-top: 1.5rem;
}

.pt-5 {
  padding-top: 3rem;
}

.pb-1 {
  padding-bottom: 0.25rem;
}

.pb-2 {
  padding-bottom: 0.5rem;
}

.pb-3 {
  padding-bottom: 1rem;
}

.pb-4 {
  padding-bottom: 1.5rem;
}

.pb-5 {
  padding-bottom: 3rem;
}

.py-1 {
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
}

.py-2 {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.py-3 {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.py-4 {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.py-5 {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.px-1 {
  padding-left: 0.25rem;
  padding-right: 0.25rem;
}

.px-2 {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.px-3 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.px-4 {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.px-5 {
  padding-left: 3rem;
  padding-right: 3rem;
}

settings.json

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