aria-describedby
ID reference listAssociates an element with other elements whose text provides a longer description, such as a field's hint or error message. The referenced text is announced after the element's name and role, as supplementary detail. Unlike aria-labelledby it supplements the accessible name rather than replacing it.
Value
A space-separated list of element ids.
Used on
Any HTML element —
aria-describedby is a global property.Associated roles
Every ARIA role. As a global property,
aria-describedby is supported on all roles.Example
aria-describedby="…"
<input aria-describedby="hint" />
<p id="hint">Use 8+ characters.</p>References