colgroup – table column group

ⓘ colgroup – table column group # T

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

Permitted contents #

zero or more col elements, or an optional span attribute

Permitted attributes #

global attributes & span

ⓘ global attributes: Any attributes permitted globally.
ⓘ span = positive integer #: The number of columns in the group.

Additional constraints and admonitions #

The “width” attribute on the “colgroup” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “char” attribute on the “colgroup” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “charoff” attribute on the “colgroup” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes
The “valign” attribute on the “colgroup” element is obsolete. Use CSS instead. http://wiki.whatwg.org/wiki/Presentational_elements_and_attributes

Tag omission #

A colgroup element's start tag may be omitted if the first thing inside the colgroup element is a col element, and if the element is not immediately preceded by another colgroup element whose end tag has been omitted.

A colgroup element’s end tag may be omitted if the colgroup element is not immediately followed by a space character or a comment.

Permitted parent elements #

table

DOM interface #

interface HTMLTableColElement : HTMLElement {
           attribute unsigned long span;
};

Typical default display properties #

colgroup {

display: table-column-group; }

HTML 5: The Markup Language (ARIA Edition)