#HTML `<colgroup>`

The <colgroup> HTML element defines a group of columns within a table.

Please see HTML Element Manual for more information about HTML elements.。

#Attributes

Please see HTML global attributes to learn about the global attributes of HTML elements.

span: Specifies the number of consecutive columns the <colgroup> element spans. The value must be a positive integer greater than zero. If not present, its default value is 1.

Note: The span attribute is not permitted if there are one or more <col> elements within the <colgroup>.

Created in 5/27/2025

Updated in 5/27/2025