Novabase.pt W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “revisit-After” for attribute “http-equiv” on element “meta”.
Bad value “rating” for attribute “http-equiv” on element “meta”.
Bad value “distribution” for attribute “http-equiv” on element “meta”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
The element “footer” must not appear as a descendant of the “header” element.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
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.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
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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