<th>1</th>

<td><a class="property-reference" href="#aria-describedby"><code>aria-describedby</code></a> attribute</td>

<td>Use on any element</td>

<td><a href="#mapping_additional_nd_te">Text content computation</a> on all nodes referenced by aria-describedby on the element, concatenated, and separated by a space character</td>

<td><a href="#mapping_additional_nd_name">Name computation</a> on all nodes referenced by aria-describedby on the element, concatenated, and separated by a space character</td>

</tr>

<tr>

<th>2</th>

for the HTML elements which meet this condition.

</td>

<td>

Either a <a href="#mapping_additional_nd_te">text equivalent computation</a> of the element, or as a flat string of the attribute's value.

Either a <a href="#mapping_additional_nd_te">text equivalent computation</a> of the host language element, or the string value of the host language attribute.

</td>

</tr>

<tr>