### 27.3.2 Specifying id/headers attributes for table cells

Table 27-2 shows the id/headers attributes you can specify in the [Tables] section. For selected tables you can override each of the *IDs settings in the [TableAccess] section, by specifying the same setting, prefixed with No, as a property; see §27.4 Overriding default table-cell settings.

Table 27-2 WAI id/header table cell attributes

| [Tables] setting | Default value | Purpose | Ref.
* Cells marked ColGroup or RowGroup via [HtmlStyles]parafmt=x Group or via CellGroup marker
Column | ColGroupHead | group | Name the id to use for column group headers | 27.3.3
ColGroupIDs | No | Add id="groupN" to ColGroup* header cells, headers="groupN" to cells in the column group
ColSpanHead | span | Name the id to use for column-spanning headers | 27.3.6
ColSpanIDs | No | Add id="spanN" to column-header cells designated Span via [HtmlStyles] or CellSpan marker, headers="spanN" to cells in the column
ColHead | col | Name the id to use for columns | 27.3.8
ColIDs | No | Add id="colN" to column headers, headers="colN" to cells in the column
Row | RowGroupHead | group | Name the id to use for row group headers | 27.3.3
RowGroupIDs | No | Add id="groupN" to RowGroup* header cells, headers="groupN" to cells in the row group
RowSpanHead | span | Name the id to use for row-spanning headers | 27.3.6
RowSpanIDs | No | Add id="spanN" to row-header cells (first cell in each row) designated Span via [HtmlStyles] (or via a CellSpan marker), headers="spanN" to cells in the row
RowHead | row | Name the id to use for rows | 27.3.8
RowIDs | No | Add id="rowN" to leftmost column, headers="rowN" to cells in the row

| 27.3.1 Choosing an id/headers level |  | 27.3.3 Grouping header cells for identification |