<tr id="att-colspan" tabindex="-1">

<th>

Any element where the <a data-cite="html/tables.html#attr-tdth-colspan">`colspan`</a>

attribute is allowed

</th>

<td>

`aria-colspan="..."`

</td>

<td>

<p>

Use the `colspan` attribute on any element that is

<a data-cite="html/tables.html#attr-tdth-colspan">allowed the `colspan` attribute</a> in HTML.

</p>

<p>

Authors MAY use the `aria-colspan` attribute on any element that is allowed the `colspan` attribute in HTML, or any element with a WAI-ARIA role which allows the <a data-cite="wai-aria-1.1#aria-colspan">`aria-colspan` attribute</a>.

</p>

<p>

Authors SHOULD NOT use the `aria-colspan` attribute on any element which also has a `colspan` attribute.

</p>

<p>

Authors MUST NOT use `aria-colspan` on any element which also has a `colspan` attribute, and the values of each attribute do not match.

</p>

</td>

</tr>

<tr id="att-rowspan" tabindex="-1">

<th>

Any element where the <a data-cite="html/tables.html#attr-tdth-rowspan">`rowspan`</a>

attribute is allowed

</th>

<td>

`aria-rowspan="..."`

</td>

<td>

<p>

Use the `rowspan` attribute on any element that is

<a data-cite="html/tables.html#attr-tdth-rowspan">allowed the `rowspan` attribute</a> in HTML.

</p>

<p>

Authors MAY use the `aria-rowspan` attribute on any element that is allowed the `rowspan` attribute in HTML, or any element with a WAI-ARIA role which allows the <a data-cite="wai-aria-1.1#aria-rowspan">`aria-rowspan` attribute</a>.

</p>

<p>

Authors SHOULD NOT use the `aria-rowspan` attribute on any element which also has a `rowspan` attribute.

</p>

<p>

Authors MUST NOT use `aria-rowspan` on any element which also has a `rowspan` attribute, and the values of each attribute do not match.

</p>

</td>

</tr>