Addwebsolution.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “title”.
Attribute “about” not allowed on element “article” at this point.
Attribute “width” not allowed on element “a” at this point.
Attribute “aria-polite” not allowed on element “a” at this point.
Stray start tag “footer”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
Attribute “aria-required” is unnecessary for elements that have attribute “required”.
The “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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