Section 3.1: Readable Content
This section of WCAG 2.1 focuses on making text content readable and understandable, ensuring accessibility for users of all literacy levels and language proficiency.
3.1.1 Language of Page
The default human language of each web page must be programmatically defined to help assistive technologies interpret the content correctly.
- Example: The language of this page is defined in the HTML tag as
lang="en".
3.1.2 Language of Parts
If parts of a page are in a language different from the default, the change in language must be programmatically defined to assist assistive technologies.
- Example: Below is a paragraph in French, marked with
lang="fr":
Ceci est un exemple de texte en français.
3.1.3 Unusual Words
Provide explanations for unusual words, abbreviations, or jargon to make the content more understandable.
- Example: Below is an abbreviation with its meaning displayed:
The WCAG helps ensure accessible web content for all users.
3.1.4 Abbreviations
Define or expand abbreviations where they first appear to make them understandable for users unfamiliar with them.
- Example: Below is another abbreviation with its expanded meaning:
Our company complies with GDPR standards.
3.1.5 Reading Level
If text requires a reading ability beyond lower secondary education, provide a simpler version or supplementary content to aid understanding.
- Example: Below is a simplified explanation of technical content:
Original: The refractive index of the material determines how light is bent.
Simplified: The way light bends depends on the material it passes through.
3.1.6 Pronunciation
For words where pronunciation is necessary to understand the meaning, provide a phonetic guide or audio support.
- Example: Below is a word with its pronunciation in parentheses:
The word epitome (pronounced eh-pit-uh-mee) is often misunderstood.