The headers attribute on a <th> tag points to one or more table header cells which the current header cell is related to.
The headers setting has no visual effect.
A headers attribute on 2 <th> elements.
Both second row header cells are related to the first row header cell.
| Online Customers | |
|---|---|
| First name | Last name |
| Denice | Templeman |
| Paulo | Cornell |
| Maria | Larsson |
<style>
table.tbl { width: 300px; border-collapse: collapse; }
.tbl th { background-color:aliceblue; }
.tbl th, .tbl td { border: solid 1px #777; padding: 5px; }
#online { background-color:lightblue; }
</style>
<table class="tbl">
<tr>
<th id="online" colspan="2">Online Customers</th>
</tr>
<tr>
<th headers="online">First name</th>
<th headers="online">Last name</th>
</tr>
<tr>
<td>Denice</td>
<td>Templeman</td>
</tr>
<tr>
<td>Paulo</td>
<td>Cornell</td>
</tr>
<tr>
<td>Maria</td>
<td>Larsson</td>
</tr>
</table>
The headers attribute specifies which table header cells are related to the current header cell.
This attribute accepts a space-separated string of table header ids.
The headers setting has no visual effect. It is used by screen readers, search engines, JavaScript, etc.
<th headers="header-id">
| Value | Description |
|---|---|
| header-id | Space-separated string of table header ids. |
Here is when headers support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
Back to <th>
