sass-site/source/assets/sass/components/_callouts.scss

.sl-c-callout {
  margin: 1.5rem 0;
  padding: 1.5rem 1rem;
  background: lighten($sl-color--pale-sky, 60%);
  border-radius: 2px;

  &--warning {
    background: lighten($sl-color--hopbush, 38%);
    border: 1px solid lighten($sl-color--hopbush, 27%);
  }

  &--fun-fact {
    background: lighten($sl-color--patina, 47%);
    border: 1px solid lighten($sl-color--patina, 32%);
  }

  &--function {
    padding-bottom: .25rem;
    padding-top: 0;

    .signature {
      // Make sure permalinks are visible.
      overflow: visible;

      margin-left: -1rem;
      margin-right: -1rem;
    }
  }

  &--impl-status {
    font-size: 0.8em;
    margin-top: -1rem;
    padding: 0.8rem;

    .sl-c-callout & {
      background: lighten($sl-color--pale-sky, 53%);
    }
  }

  > *:first-child { margin-top: 0; }

  > *:last-child { margin-bottom: 0; }
}

@include sl-breakpoint--medium {
  .sl-l-container--overview {
    font-size: 1.25rem;

    .sl-c-callout { font-size: 1rem; }
  }
}

@include sl-breakpoint--large {
  .sl-c-callout--function {
    padding-left: 2.25rem;

    .signature {
      margin-left: -2.25rem;
      margin-right: 0;
    }
  }
}