storybookjs

storybook-ui

Only use ARIA attributes that are permitted for the element's role.

Every <button> needs a visible label or accessible name.

The complementary landmark <aside> or role="complementary" should be a top-level region, not nested in another landmark.

The color contrast between text and its background meets WCAG AA contrast ratio.

If you use multiple landmarks of the same type, give them unique labels (names).