Some Microdata examples use a 'content' attribute for 'span' #184
Description
(Coming from this Stack Overflow question: HTML5 microdata: span content?)
http://schema.org/Book contains Microdata examples containing
<span itemprop="price" content="6.99">$6.99</span>
<span itemprop="inLanguage" content="en">English-language</span>
<span itemprop="name" content="Tolkien, J. R. R. (John Ronald Reuel)">J. R. R. Tolkien</span>
But a span element can’t have a content attribute in Microdata (contrary to RDFa).