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Old 01-09-2013, 05:50 AM   #1
verydeepwater
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verydeepwater began at the beginning.
 
Posts: 46
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Join Date: Nov 2012
Device: Ipad and Kindle Fire
W3C Validation says: Elements are undefined

I am making a fixed layout eBook in xhtml, using Dreamweaver. I am trying to mark out a section using html5 tags: <article> and <section>. Everything looks OK, but when I validate it, I get the error message: element "article" undefined [XHTML 1.1]
Is it possible to use these elements with XHTML?
Is there a way to avoid these error messages?
Is it OK to ignore these error messages for ePubs?
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