.spacer {
  display: block;
}

.spacer--sm {
  height: 24px;
}

.spacer--md {
  height: 32px;
}

.spacer--lg {
  height: 48px;
}

@media (min-width: 992px) {
  .spacer--sm {
    height: 32px;
  }

  .spacer--md {
    height: 64px;
  }

  .spacer--lg {
    height: 96px;
  }
}