HTMLTableCellElement: scope property
The scope
property of the HTMLTableCellElement
interface
indicates the scope of a <th>
cell.
Header cells can be configured, using the scope
attribute, to apply to a specified row or column, or to the not-yet-scoped cells within the current row group (that is, the same ancestor <thead>
, <tbody>
, or <tfoot>
element). If no value is specified for scope
, the header is not associated directly with cells in this way. Permitted values for scope
are:
Note: this property doesn't have a visual effect in browsers. It adds semantic information to help assistive technology like screenreaders to present the table in a more coherent way.
Value
One of the following values:
col
-
The header cell applies to the following cells in the same column (or columns, if
colspan
is used as well), until either the end of the column or another<th>
in the column establishes a new scope. colgroup
-
The header cell applies to all cells in the current column group that do not already have a scope applied to them. This value is only allowed if the cell is in a column group.
row
-
The header cell applies to the following cells in the same row (or rows, if
rowspan
is used as well), until either the end of the row or another<th>
in the same row establishes a new scope. rowgroup
-
The header cell applies to all cells in the current row group that do not already have a scope applied to them. This value is only allowed if the cell is in a row group.
- The empty string (
""
) -
The header cell has no predefined scope; the user agent will establish the scope based on contextual clues.
Examples
This example adds a label all the cell numbers of the first row of the tbody
.
HTML
<table>
<caption>
Tallest Dams
</caption>
<tr>
<td></td>
<th scope="col">Dam</th>
<th scope="col">Country</th>
<th scope="col">Height</th>
</tr>
<tr>
<td>1.</td>
<th scope="row">Jinping-I Dam</th>
<td>China</td>
<td>305 m</td>
</tr>
<tr>
<td>2.</td>
<th scope="row">Nurek Dam</th>
<td>Tajikistan</td>
<td>300 m</td>
</tr>
<tr>
<td>3.</td>
<th scope="row">Lianghekou Dam</th>
<td>China</td>
<td>295 m</td>
</tr>
<tr>
<td>4.</td>
<th scope="row">Xiowan Dam</th>
<td>China</td>
<td>292 m</td>
</tr>
<tr>
<td>5.</td>
<th scope="row">Balhetan Dam</th>
<td>China</td>
<td>289 m</td>
</tr>
<tr>
<td>6.</td>
<th scope="row">Xiluodu Dam</th>
<td>China</td>
<td>285.5 m</td>
</tr>
<tr>
<td>7.</td>
<th scope="row">Grande-Dixence Dam</th>
<td>Switzerland</td>
<td>285 m</td>
</tr>
</table>
Results
Specifications
Specification |
---|
HTML Standard # dom-th-scope |
Browser compatibility
BCD tables only load in the browser