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Originally Posted by exaltedwombat
There's two possible items, lang and xml:lang. Epubcheck only seems to like one of them.
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The recommendation on this topic from the
Daisy Accessible Publishing Knowledge Base is:
Quote:
Is it necessary to specify both the lang and xml:lang attributes?
For optimal accessibility both should be specified when creating XHTML content. Assistive technologies may only recognize one or the other attribute.
In addition, if XHTML documents are rendered as HTML by a user agent, only the lang attribute may be recognized.
The xml:lang attribute is not valid in HTML documents, only in XHTML.
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