Margin and padding for sass.

margin-padding.scss

@mixin mt($px) { margin-top: $px; }
@mixin mb($px) { margin-bottom: $px; }
@mixin ml($px) { margin-left: $px; }
@mixin mr($px) { margin-right: $px; }
@mixin ma($px) { margin: $px; }
@mixin mx($px) { @include ml($px); @include mr($px); }
@mixin my($px) { @include mt($px); @include mb($px); }
@mixin pt($px) { padding-top: $px; }
@mixin pb($px) { padding-bottom: $px; }
@mixin pl($px) { padding-left: $px; }
@mixin pr($px) { padding-right: $px; }
@mixin pa($px) { padding: $px; }
@mixin px($px) { @include pl($px); @include pr($px); }
@mixin py($px) { @include pt($px); @include pb($px); }

@for $l from 0 through 10{
    $i: #{$l * 5};
    .mt-#{$i}{ @include mt($i+'px'); }
    .mb-#{$i}{ @include mb($i+'px'); }
    .ml-#{$i}{ @include ml($i+'px'); }
    .mr-#{$i}{ @include mr($i+'px'); }
    .ma-#{$i}{ @include ma($i+'px'); }
    .my-#{$i}{ @include my($i+'px'); }
    .pt-#{$i}{ @include pt($i+'px'); }
    .pb-#{$i}{ @include pb($i+'px'); }
    .pl-#{$i}{ @include pl($i+'px'); }
    .pr-#{$i}{ @include pr($i+'px'); }
    .pa-#{$i}{ @include pa($i+'px'); }
    .py-#{$i}{ @include py($i+'px'); }
}