liebling/src/sass/components/heading/_description.scss

.m-heading__description {
  letter-spacing: 0.2px;
  line-height: 1.3;
  font-size: 0.938rem;
  margin: 0 auto;

  @include respond-to('medium') {
    font-size: 1.125rem;
  }

  &.in-subscribe-page {
    @include respond-to('medium') {
      max-width: 420px;
      font-size: 1rem;
    }
  }

  &.in-newsletter-form {
    font-size: 0.875rem;
    max-width: 80%;

    @include respond-to('medium') {
      max-width: 420px;
    }
  }
}