The <colgroup> tag

Definition and Usage

Defines groups of table columns. With this element, you can group columns for formatting. This element is only valid inside the <table> tag.

Tips and Notes

Note: The colgroup element is an empty element that contains attributes only. To create columns, you must specify td elements within a tr element.

Examples

This code:

Produces this output:

This example creates a table with four columns, with the first three columns in one colgroup, and the last column in the second colgroup:
<table border="1">
<colgroup span="3" style="color:#FF0000;">
</colgroup>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
</table>

Optional Attributes

Attributes:	Values:	Description:
span	number	The number of columns the colgroup should span
width	% pixels relative_length	Sets the width of the column-group. Can be overridden by settings in a col element
align	right left center justify char	The horizontal alignment of the contents in the tablecell, in the column-group
char	character	Specifies which character that must be used to center the text around, when you have specified align="char"
charoff	pixels %	Specifies an offset that must be used when you have set align="char". This offset is added to the position where the character to center around is
valign	top middle bottom baseline	The vertical alignment of the contents in the tablecell, in the column-group

Standard Attributes

id, class, title, style, dir, lang

For a full description, go to Standard Attributes.

Event Attributes

onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup

For a full description, go to Event Attributes.

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