HTML · Global attributes

aria-describedby

Points to the element that provides an accessible description.

htmlRunnable example html course

Syntax

aria-describedby="hint"

Example

Try it

<input id="email" aria-describedby="email-hint"><p id="email-hint">We never share your email.</p>

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.