Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:addthis” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “controlslist” not allowed on element “video” at this point.
Element “source” not allowed as child of element “video” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Element “o:p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “_blank"” for attribute “target” on element “a”: Reserved keyword “blank"” used.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:addthis” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Element name “o:p” cannot be represented as XML 1.0.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “contentinfo” role is unnecessary for element “footer”.
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