Data cells must use headers attribute

Definition Data cells in complex data tables must use headers attribute to identify header cells.
Purpose
  • The data cells in complex data tables need to use the headers attribute to identify the appropriate header cells, since simple row/column relationships cannot be relied upon to provide header information.
  • Complex data tables are defined as tables with row and/or column spans, or more than one header cell (e.g. th element) in any row or column of the table.
Required Yes for HTML4 Legacy Techniques ruleset mapping
WCAG 2.0 Success Criteria

1.3.1 Info and Relationships (Level A, Primary Success Criterion)

Rule Category Tables
Scope Element
Target Resources td elements
  • td
Techniques
  • Use headers attribute on each td element used as a data cell to identify header information in complex data tables.
Manual Checks
  • Verify the each data cell has header cells that clearly identify the meaning of the content of the data cell.
  • Verify that empty td and th elements and does not need table headers.
Informational Links