src/frame/components/ui/MarkdownContent/stylesheets/code.scss

.markdownBody {
  [class~="highlight"] pre,
  pre {
    margin-top: 0.5rem;
    border: 1px var(--color-border-default) solid;
  }

  [class~="height-constrained-code-block"] pre {
    max-height: 32rem;
  }

  [class~="code-example"] {
    margin-top: 1.5rem;

    pre,
    div {
      margin-top: 0 !important;
      border-top-left-radius: 0 !important;
      border-top-right-radius: 0 !important;
      border-left: 1px var(--color-border-default) solid !important;
      border-bottom: 1px var(--color-border-default) solid !important;
      border-right: 1px var(--color-border-default) solid !important;
    }
  }

  // on graphql/overview/resource-limitations
  pre [class~="redbox"],
  pre [class~="greenbox"],
  pre [class~="bluebox"] {
    color: var(--color-fg-on-emphasis);
    padding: 0 0.25rem;
    border-radius: 4px; // primer rounded-1
  }

  pre [class~="redbox"] {
    background-color: var(--color-danger-emphasis);
  }

  pre [class~="greenbox"] {
    background-color: var(--color-success-emphasis);
  }

  pre [class~="bluebox"] {
    background-color: var(--color-accent-emphasis);
  }
}