Errors:
Attribute “charset” not allowed on element “meta” at this point.
Attribute “encoding” not allowed on element “meta” at this point.
Element “meta” is missing required attribute “content”.
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.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “li” not allowed as child of element “nav” in this context. (Suppressing further errors from this subtree.)
Element “br” not allowed as child of element “hgroup” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “width=” for attribute “height” on element “img”: Expected a digit but saw “w” instead.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Bad value “top” for attribute “rel” on element “a”: The string “top” is not a registered keyword.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Warnings:
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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