- From: Johannes Koch <koch@w3development.de>
- Date: Fri, 26 Jan 2007 08:50:31 +0100
- To: WCAG-WG <w3c-wai-gl@w3.org>
Bailey, Bruce schrieb: > The question came up on tonight’s call as to why an author would use SCOPE instead of TH for a data table with only one level of row or column headings. I thought I would share a couple of scenarios I have encountered with some regularity. I agree these are not *great* reasons for the technique, but I am comfortable asserting they are at least minimally acceptable. > > 1) The author is not comfortable with CSS and finds the default formating effects associated with TH to be undesirable. Adding a SCOPE attribute to a TD tag is a straightforward fix. > > 2) TH tags do not *always* appear in the topmost row or the leftmost column. The value associated with a SCOPE attribute programatically resolves any ambiguity as to if a TH applies to a row or column. 3) A cell may be data according the column header, but act as a header for the row. The HTML 4.01 specification says: <!-- TH is for headers, TD for data, but for cells acting as both use TD --> According to this the proper markup would be a td (with scope="row"). Example: <table> <caption>Results 100m Men</caption> <thead> <tr> <th scope="col">Rank</th> <th scope="col">Name</th> <th scope="col">Time</th> </tr> </thead> <tbody> <tr> <td scope="row">1</td> <td>Freddy Fast</td> <td>11.07</td> </tr> ... <tr> <td scope="row">8</td> <td>Stephen Slow</td> <td>13.49</td> </tr> </tbody> </table> -- Johannes Koch Spem in alium nunquam habui praeter in te, Deus Israel. (Thomas Tallis, 40-part motet)
Received on Friday, 26 January 2007 07:50:59 UTC