|use it, but don't rely on it|
SPAN: how many columns this affects
ALIGN: alignment of cell contents
WIDTH: Width of the column group
<COLGROUP ...> defines a group of columns in the table and allows you to set properties of those columns.
<COLGROUP ...> goes immediately after the
<TABLE ...> tag and before any
<TBODY ...>, or
<TFOOT ...> tags.
<COLGROUP ...> works very much like
<COL ...>, but be sure to note that
<COLGROUP ...> requires both an opening and closing tag.
<COLGROUP ...> is most useful for defining column groups to use in conjunction with
<TABLE RULES=GROUPS> to put
borders between groups of columns instead of between every column. For example the following code creates a table that puts the first column in a group by itself, all the remaining columns in a group together, and puts borders between the groups of columns.
<TABLE BORDER=1 CELLPADDING=4 RULES=GROUPS FRAME=BOX>
|Weekday ||Date ||Manager ||Qty |
|Monday ||09/11 ||Kelsey ||639 |
|Tuesday ||09/12 ||Lindsey ||596 |
|Wednesday ||09/13 ||Randy ||1135 |
|Thursday ||09/14 ||Susan ||1002 |
|Friday ||09/15 ||Randy ||908 |
|Saturday ||09/16 ||Lindsey ||371 |
|Sunday ||09/17 ||Susan ||272 |
See Table Borders: Between Groups of Columns for more details about putting borders between columns.