|Version:||WCAG 2.0 and up|
The default human language of each Web page can be programmatically determined.
The purpose of this success criterion is to ensure that the language of the content is available to reading systems and assistive technologies so that they can best render the text content (e.g., to optimize text-to-speech playback).
How to Meet
Authors need to ensure that the primary language is specified both in the EPUB Package Document
xml:lang attributes and the
dc:language element) and in
any HTML and SVG documents with text content (using the
lang attributes, as appropriate).
The following knowledge base pages provide more information about how to address this success criterion for publishing content: