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Specifies whether a header cell is a header for a column (scope="col"), row (scope="row"), group of columns (colspan="2" scope="colgroup"), or group of rows (rowspan="2" scope="rowgroup"). It has no visual effect, but is used by screen readers and is recommended according to accessibility guidelines .
A table cell is one grouping within a chart table used for storing information or data. Cells are grouped horizontally (rows of cells) and vertically (columns of cells). Each cell contains information relating to the combination of the row and column headings it is collinear
For complex tables, when a header spans two columns or rows, use ! scope="colgroup" colspan="2" | or ! scope="rowgroup" rowspan="2" | respectively to clearly identify the header as a column header of two columns or a row header of two rows.
Template parameters [Edit template data] Parameter Description Type Status margin-left margin-left To set a margin on the table's lefthand side. Default 0 String optional width width To set the table's overall width. Default auto String optional style style For CSS styles amending the table's overall appearance. String optional noheaders noheaders Set (as e.g. noheaders=on) to suppress the ...
Another method for multi-key sorting is to hold down the ⇧ Shift key while clicking on column headings. For instance, to sort by the "Text" column followed by the “Numbers" column, you would first click on the “Text” column heading (primary key), then hold down the ⇧ Shift key and click on the “Numbers" column heading (secondary key).
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The two most commonly used classes are "wikitable" and "wikitable sortable"; the latter allows the reader to sort the table by clicking on the header cell of any column. |+ caption Required for accessibility purposes on data tables, and placed only between the table start and the first table row. ! header cell Optional.
Consecutive rows of column headers are top sticky, so avoid adding a row of headers right under the column headers that don't apply to the entire table such as a section header meant to visually separate the table. A solution might be to move each section to a column or separate tables, which also avoids accessibility issues per MOS:COLHEAD.