Typographic pictograms have a suitable alternative.

The use of web fonts (downloadable character fonts) has considerably facilitated the use of a technical trick very appreciated from a performance point of view: replacing the images of various icons with a graphic UTF-8 character obtained thanks to a font specific, however, carries significant risks, particularly in terms of accessibility, if you do not take care to provide a textual alternative to this character diverted from its default meaning.

Objectives

  • Improve the accessibility of content to people with disabilities.

Implementation

  • Test the text containing the character(s) concerned with the sound rendering of the reading software.
  • If the software does not recognize the character, then we will use content hidden on display via CSS.

Control

  • Examine the code directly to verify that each icon displayed via a font has, where appropriate, an alternative in the HTML content.

Validation

  • Needs to be human verified.

Informations :

Steps concerned :

references :

metadata :

  • ONIX
  • OPF

About that rule

Rule origin : Opquast | Opquast reference 4 184 | Updated on July 22, 2024

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