Errors:
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.
Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.
Bad value “//schema.org/WebPage” for attribute “itemtype” on element “body”: The string “//schema.org/WebPage” is not an absolute URL.
Bad value “//schema.org/Organization” for attribute “itemtype” on element “div”: The string “//schema.org/Organization” is not an absolute URL.
Duplicate attribute “class”.
Duplicate attribute “type”.
Element “style” not allowed as child of element “main” in this context. (Suppressing further errors from this subtree.)
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
No “p” element in scope but a “p” end tag seen.
Element “p” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “style”.
End tag “h2” seen, but there were open elements.
Unclosed element “sup”.
Bad value “navigation” for attribute “role” on element “ul”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “contentinfo” role is unnecessary for element “footer”.
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