message: Make classnames demo spacing consistent
diff: @@ -65,6 +65,7 @@ html[data-theme='dark'] .header-github-link:before {
  .ruleGroup {
  border: 2px solid maroon;
  padding: $structure-padding;
  + row-gap: $structure-padding !important;
  }
  .ruleGroup-header {
  @@ -75,6 +76,7 @@ html[data-theme='dark'] .header-github-link:before {
  .ruleGroup-body {
  border: 2px solid blue;
  padding: $structure-padding;
  + row-gap: $structure-padding !important;
  }
  .rule {
  