Myoccu.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “addthis:userid” not allowed on element “a” at this point.
Duplicate attribute “class”.
Attribute “about” not allowed on element “article” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “about” not allowed on element “section” at this point.
Attribute “about” not allowed on element “li” at this point.
Attribute “about” not allowed on element “div” at this point.
The element “main” must not appear as a descendant of the “article” element.
Stray end tag “main”.
End tag “div” seen, but there were open elements.
Unclosed element “main”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Attribute “addthis:userid” is not serializable as XML 1.0.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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