HTML Base for an Accessible Table

gistfile1.txt

<table role="table">
	<caption>Your table heading</caption>
	<thead role="rowgroup">
		<tr role="row">
			<th scope="col" role="columnheader">th content</th>
			<th scope="colgroup"  role="columnheader" colspan="3">th content</th>
		</tr>
	</thead>
	<tbody role="rowgroup">
		<tr role="row">
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
		</tr>
	</tbody>
	<tfoot role="rowgroup">
		<tr role="row">
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
			<td role="cell">cell content</td>
		</tr>
	</tfoot>
</table>