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HTML <colgroup> Tag

Example

The <colgroup> and <col> tags set background colors for three columns in a table:


Browser Support

All major browsers support the <colgroup> tag.


Tag Definition and Usage

The <colgroup> tag is used to group columns in a table for formatting purposes.

By using the <colgroup> tag, you can apply styles to entire columns without having to repeat the styles for each cell or each row.

Note: The <colgroup> tag should be used within the <table> element, after any <caption> element, and before any <thead>, <tbody>, <tfoot>, <tr> elements.

Tip: To define different attributes for columns within a <colgroup>, use the <col> tag inside the <colgroup> tag.


Differences Between HTML 4.01 and HTML5

Most of the attributes from HTML 4.01 are no longer supported in HTML5.


Attributes

Attribute Value Description
align left <br>right <br>center <br>justify <br>char Not supported in HTML5. Specifies the horizontal alignment of content in a column group.
char character Not supported in HTML5. Specifies the character to align content within a column group.
charoff number Not supported in HTML5. Specifies the offset of the first alignment character.
span number Specifies the number of columns a column group should span.
valign top <br>middle <br>bottom <br>baseline Not supported in HTML5. Defines the vertical alignment of content in a column group.
width pixels<br> %<br> relative_length Not supported in HTML5. Specifies the width of a column group.

Global Attributes

The <colgroup> tag supports HTML's global attributes.


Event Attributes

The <colgroup> tag supports HTML's event attributes.

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