The essential ARIA attributes for an accessible accordion snippet include:
aria-expanded="true/false": Indicates whether the accordion is expanded or collapsed.
aria-hidden="true/false": Specifies whether the content is visible or hidden.
role="button": Applied to the clickable element for screen reader support.
id and aria-controls: The button should reference the expandable content with a matching id.
For example:
<button aria-expanded="false" aria-controls="section1">View More</button>
<div id="section1" aria-hidden="true">This is the hidden content.</div>
These attributes improve both SEO and accessibility, ensuring better visibility and compliance with WCAG standards.
