This element acts as a container for a group of columns (which are specified
with COL elements), and allows the author to specify default properties for these
columns. This element comes before any of the standard row grouping hierarchies
(TR, THEAD,
TBODY and TFOOT),
and only serves to more completely describe organizational characteristics of the
row grouping data that follow (no cell data is contained in COLGROUPs.)
If no COLGROUP elements are present, all columns in the table are assumed to
be part of a single column group. Each COLGROUP grouping can contain zero
or more COL elements.
Description:
This controls the horizontal alignment of text within the column group.
Values:Left |
Center | Right
Char
2
| 3 | 3.2
| 4 | IE
| M | N
| O
Required? No
Description:
This attribute specifies a character in the cell content to be used to
align the data in each cell of the column group (the first occurrence
should be used.) The default value for this attribute is the decimal
point character for the current specified language.
Values: A case-sensitive character
within the current character set.
Charoff
2
| 3 | 3.2
| 4 | IE
| M | N
| O
Required? No
Description:
This attribute specifies the spacing offset to the first occurrence of the
alignment character (specified by the CHAR attribute) on each line of cells
in the current column group. The direction of the offset is determined by
the current text direction (set with the DIR attribute or the BDO element.)
Values: Integers indicating pixel offset values.
Span
2 | 3
| 3.2 | 4
| IE3A1 | M
| N | O
Required? No
Description:
This attribute specifies a default for how many columns are in the current
group. It provides a convenient way of grouping columns without the need
to supply COL elements. This attribute should be ignored if the current
COLGROUP contains one or more COL tags.
Values: Positive integers [DEFAULT:1]
VAlign
2
| 3 | 3.2
| 4 | IE4B1
| M | N
| O
Required? No
Description:
This attribute specifies the vertical alignment of cell contents
relative to the cell boundaries for all cells in the column group.
Values:Top |
Middle | Bottom |
Baseline
Width
2
| 3 | 3.2
| 4 | IE4B1
| M | N
| O
Required? No
Description:
Specifies the overall width of the column grouping.
Values:
Specified in pixels or a percentage of the browser window width.
The Table model (even the Simple Table Model) is easily the most
complex markup structure in HTML. If you have other general questions
about this structure see the Table Overview.