message: improve rules heading
diff: @@ -56,8 +56,8 @@ h3.subTitle:before {
  .rulesTitle {
  line-height: 1;
  margin-top: 2rem;
  - background: var(--color-secondary);
  - border-bottom: 0;
  + background: black;
  + border: 1px solid var(--color-secondary);
  padding: 0.4rem 0.5rem 0.6rem 0.5rem;
  border-radius: 6px;
  }
  