ColumnGroup span Property
Example
Set the background color of the first two columns to red:
	document.getElementById("myColgroup").span = "2";
document.getElementById("myColgroup").style.backgroundColor = "red";
Try it yourself »
Definition and Usage
The span property sets or returns the value of the span attribute of a column group.
The span attribute defines the number of columns a <colgroup> element should span.
Tip: To specify different properties to a column within a <colgroup>, use the Column object.
Browser Support
 
 
 
 

The span property is supported in all major browsers.
Syntax
Return the span property:
	columngroupObject.span
Set the formMethod property:
	columngroupObject.span=number
Property Values
| Value | Description | 
|---|---|
| number | Specifies the number of columns a <colgroup> element should span | 
Technical Details
| Return Value: | A Number, representing the number of columns | 
|---|
More Examples
Example
Return the number of columns a <colgroup> element should span:
	var x = document.getElementById("myColgroup").span;
The result of x could be:
2
Try it yourself »
Related Pages
HTML reference: HTML <colgroup> span attribute
 ColumnGroup Object
 ColumnGroup Object

