The official W3C recommendation is to declare the primary language for each Web page with a attribute in the tag. The LANG attribute is designed to signal screen readers to switch to another language. WCAG 2.0 Guideline 3.1.2-'The human language of each passage or phrase in the content can be programmatically determined except for proper names, technical terms, words of indeterminate language, and words or phrases that have become part of the vernacular of the immediately surrounding text. 'Įven more critical is to use language tagging to signal a switch in languages. WCAG 2.0 Guideline 3.1.1-'The default human language of each Web page can be programmatically determined. For this reason and other, tagging Web text as being in a particular language is required in WCAG 2.0. the lang='' attribute) is designed to signal screen readers pronunciation engines to switch to another language. Consider supplementing language changes with a textual indication (visual or hidden) to indicate when a foreign language word or passage is coming.Use the LANG tag to mark words or passages of text in another language.Use Unicode encoding whenever possible.

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