User:Timeshifter/Sandbox112

See discussion:
 * Wikipedia talk:Manual of Style/Accessibility/Data tables tutorial

A 4th table has been added. Plus all the tables have the row number column.


 * H63: Using the scope attribute to associate header cells and data cells in data tables | Techniques for WCAG 2.0. "For simple tables that have the headers in the first row or column then it is sufficient to simply use the TH elements without scope."
 * H51: Using table markup to present tabular information | Techniques for WCAG 2.0. "Simple tables generally have only one level of headers for columns and/or one level of headers on the rows."
 * HTML th scope Attribute.