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The width attribute on the colgroup element is obsolete.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.
The char attribute on the colgroup element is obsolete. Use CSS instead.
The charoff attribute on the colgroup element is obsolete. Use CSS instead.
The valign attribute on the colgroup element is obsolete. Use CSS instead.

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: The Markup Language (an HTML language reference)