Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.14)
// Compass (v1.0.0.rc.1)
// ----

$text-base: (
  font-size: 1.0rem,
  line-height: 1.8rem,
  font-weight: normal,
  text-color: #333
);

$p: map-merge($text-base, (
  margin: 1.2rem
));

$h1-text: map-merge($text-base, (
  font-size: 4.8rem,
  line-height: normal,
  font-weight: bold
));

$h1: (
  margin: 1.8rem 0
);

@mixin text-variant ($map) {
  @each $key in map-keys($map) {
    #{$key}: map-get($map, $key);
  }
};

p {
  @include text-variant($p);
}

.h1-text {
  @include text-variant($h1-text);
}

h1 {
  @extend .h1-text;
  @include text-variant($h1);
}

SassMeister-output.css

p {
  font-size: 1rem;
  line-height: 1.8rem;
  font-weight: normal;
  text-color: #333333;
  margin: 1.2rem;
}

.h1-text, h1 {
  font-size: 4.8rem;
  line-height: normal;
  font-weight: bold;
  text-color: #333333;
}

h1 {
  margin: 1.8rem 0;
}