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The <colgroup> element represents a group of one or more columns in the table that is its parent.


  • As a child of a table element, after any caption elements and before any thead, tbody, tfoot, and tr elements.
  • If the colgroup element contains no col elements, then the element may have a span content attribute specified. [Example A]

HTML Attributes

  • span = valid non-negative integer

See also global attributes.


Example A

[try it]:

  <colgroup span="2" style="background-color: #ff0000;"></colgroup>

HTML Reference

The HTML5 specification defines the <colgroup> element in 4.9.3 The colgroup element.