HTML DOM td/th colSpan Property

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# td/th colSpan Property

td/th Object

## Definition and Usage

The colSpan property sets or returns the number of columns a table cell should span.

## Syntax

Set the colSpan property:

tdObject.colSpan="number"
or
thObject.colSpan="number"

Return the colSpan property:

tdObject.colSpan
or
thObject.colSpan

Tip: There is no default value for the colSpan property.

Value | Description
--- | ---
number | Defines the number of columns a cell should span

## Browser Support

The colSpan property is supported in all major browsers.

## Example

Change the number of columns a cell should span:

<html>
<head>
<script>
function displayResult()
{
document.getElementById("myHeader1").colSpan="2";
}
</script>
</head>
<body>
<table border="1">
<tr>
<th id="myHeader1">Month</th>
<th id="myHeader2">Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100.00</td>
</tr>
<tr>
<td>February</td>
<td>$10.00</td>
</tr>
<tr>
<td>March</td>
<td>$80.00</td>
</tr>
</table>
<br>
<button type="button" onclick="displayResult()">Change colSpan for the first cell</button>
</body>
</html>
Try it yourself »

td/th Object

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