<colgroup> (Column Group)
This element creates an explicit column group to access a group of table columns for scripting or formatting.
Standard Syntax
<colgroup
align="center | char | justify | left | right"</colgroup>
char="character"
charoff="number"
class="class name(s)"
dir="ltr | rtl"
id="unique alphanumeric identifier"
lang="language code"
span="number"
style="style information"
title="advisory text"
valign="baseline | bottom | middle | top"
width="column width specification"
<col> elements only
Attributes Defined by Internet Explorer
bgcolor="color name | #RRGGBB" (5.5)
Standard Events
onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup
Events Defined by Internet Explorer
onreadystatechange
Element Specific Attributes
- align
- This attribute specifies horizontal alignment of contents of the cells in the column group. The values of center, left, and right have obvious meanings. A value of justify for the attribute should attempt to justify all the column's contents. A value of char attempts to align the contents based on the value of the char attribute in conjunction with charoff.
- bgcolor
- This Internet Explorer-specific attribute sets the background color for the columns in the column group. Its value can be either a browser-dependent named color or a color specified using the hexadecimal #RRGGBB format.
- char
- This attribute is used to set the character to align the cells in a column on. Typical values for this include a period (.) when attempting to align numbers or monetary values.
- charoff
- This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the char value.
- span
- When present, this attribute specifies the default number of columns in this group. Browsers should ignore this attribute if the current column group contains one or more <col> elements. The default value of this attribute is 1.
- valign
- This attribute specifies the vertical alignment of the contents of the cells within the column group.
- width
- This attribute specifies a default width for each column and its cells in the current column group. In addition to the standard pixel and percentage values, this attribute might take the special form 0*, which means that the width of each column in the group should be the minimum width necessary to hold the column's contents.
Examples
<colgroup span="10" align="char" char=":" valign="center">
<colgroup style="background: green">
<col align="left">
<col align="center">
</colgroup>
Compatibility
HTML 4, 4.01, XHTML 1.0, 1.1, Basic
Internet Explorer 4, 5, 5.5, 6
Netscape 6, 7
Opera 7
Notes
Each column group defined by a <colgroup> can contain zero or more <col> elements.
Under XHTML 1.0, the closing </colgroup> tag is mandatory.
