Picto thématique

Rule n° 238 - Linearising tables used for layout does not impede the understanding of contents

A vocalised page will be read in a linear fashion, in the order in which its content appears in the HTML code. It can happen that the linearisation of the layout tables breaks the meaning of the page.

#Structure and code #Development #Accessibility

Goal

  • Supply content that is understandable to users whose user agents or technical aids (screen readers) cannot reconstruct the formatting that was initially defined by a table.

Implementation

Regroup in the same td cell the information which must be vertically associated (do not distribute it in cells placed in successive rows of the table).

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Control

For each formatting table, i.e. for each table not including data linked to row or column headers:

  • Linearise the display using a development tool.
  • Check that the linearised content remains understandable, without inconsistency or loss of information.

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