Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Attribute “1” not allowed on element “div” at this point.
Stray end tag “meta”.
Element “item” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “p” seen, but there were open elements.
Unclosed element “a”.
No “a” element in scope but a “a” end tag seen.
Element “h3” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Attribute “2” not allowed on element “div” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Warnings:
The “banner” role is unnecessary for element “header”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Attribute “1” is not serializable as XML 1.0.
Attribute “2” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
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