HTML colgroup tag


Two colgroup elements that specify different alignment and style for the three columns in the table (notice that the first colgroup element spans two columns):
<table width="100%" border="1">
  <colgroup span="2" align="left"></colgroup>
  <colgroup align="right" style="color:#0000FF;"></colgroup>
    <td>My first HTML</td>

Definition and Usage

The <colgroup> tag is used to group columns in a table for formatting.
The <colgroup> tag is useful for applying styles to entire columns, instead of repeating the styles for each cell, for each row.
The <colgroup> tag can only be used inside a table element.

Browser Support

The <colgroup> tag is only supported by Internet Explorer and Opera.

Differences Between HTML and XHTML


Tips and Notes

Tips: Add the class attribute to the <colgroup> tag, and let CSS take care of alignment, widths, colors, etc.!
Also have a look at the <col> tag.

Optional Attributes

DTD indicates in which DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.

Attribute Value Description DTD
align right
Defines the horizontal alignment of the contents in the column group STF
char character Defines a character to use to align text on (use with align="char") STF
charoff character-offset Defines an alignment offset to the first character to align on, as set with char STF
span number Defines the number of columns the <colgroup> should span STF
valign top
Defines the vertical alignment of the contents in the column group STF
width %
Defines the width of the column group.Note: The width attribute can be overridden by settings in <col>! STF

Standard Attributes

id, class, title, style, dir, lang, xml:lang

Event Attributes

onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup
HTML colgroup tag Reviewed by 1000sourcecodes on 05:53 Rating: 5
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