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HTML: <th> colspan attribute

Usage of the <th> colspan attribute, the colspan attribute defines the number of columns the header cell should span, an online instance demonstrates how to use the <th> colspan attribute, browser compatibility, syntax definition, and detailed information about its attribute values.

　HTML <th> tag

Online Example

The following HTML table contains a header cell spanning two columns:

Example

<table style="width:100%" border="1">
　　<tr>
　　　　<th colspan="2">Year　Income</th>
　　</tr>
　　<tr>
　　　　<td>2018</td>
　　　　<td>$15320.00</td>
　　</tr>
　　<tr>
　　　　<td>2019</td>
　　　　<td>$18320.00</td>
　　</tr>
</table>

Test it out ‹/›

Browser Compatibility

IEFirefoxOperaChromeSafari

All major browsers support the colspan attribute.

Note:Only Firefox supports colspan = '0', which has a special meaning (see the 'Attribute Values' table below).

Definition and Usage

The colspan attribute defines the number of columns the header cell should span.

HTML 4.01 With HTML5Differences

None.

Syntax

<th colspan="number">

Attribute Value

Value	Description
number	Set the number of columns the header cell should span. Note: colspan = '0' tells the browser to span the cell to the last column of the column group (colgroup)

　HTML <th> tag

HTML: <template> tag