HTML <colgroup> Element
The <colgroup> element is used to group together columns in an HTML table to illustrate a
structural relationship between the grouped colums unlike the <col /> element which is used to apply
styles to a particular column or columns without any structural implications.
As with the <col /> element <colgroup> can only be used within an HTML table and enables
you to apply attributes to columns instead of having to go through individual <td> elements in multiple rows to achieve the
effect you want.
Attributes
- CORE AND LANGUAGE ATTRIBUTES - class, id, title, style, dir, lang
- MOUSE AND KEYBOARD EVENT ATTRIBUTES - onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmouseout, onmousemove, onkeydown, onkeyup, onkeypress
- span* - has a number value which specifies the number of columns to which the
<colgroup>element applies. - width - specifies a default width for each column contained by the
<colgroup>element. - align* - specifies the alignment of content in a cell, values can be left, center, right, justify, char.
- valign* - specifies the vertical alignment of data in a cell. Values can be top, middle, bottom, baseline.
- char* - sets a single character in a line of text to act as the axis from which alignment takes place.
- charoff* - sets the offset from the first instance of the alignment character in each line of text.
* NOTE: char and charoff are not supported by any of the major browsers and support for align, valign and span is variable.
HTML 4 Element List
<!--<comment>--><!DOCTYPE><a><abbr><acronym><address><applet><area><b><base><basefont><bdo><big><blockquote><body><br><button><caption><center><cite><code><col> <colgroup><dd><del><dfn><dir><div><dl><dt><em><fieldset><font><form><frame><frameset><head><h1> to <h6><hr><html><i><iframe><img><input><ins><isindex><kbd><label><legend><li><link><map><menu><meta><noframes><noscript><object><ol><optgroup><option><p><param><pre><q><s><samp><script><select><small><span><strike><strong><style><sub><sup><table><tbody><td><textarea><tfoot><th><thead><title><tr><tt><u><ul><var>