Errors:
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
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.
The element “header” must not appear as a descendant of the “header” element.
Bad value “true” for attribute “required” on element “input”.
No “p” element in scope but a “p” end tag seen.
Attribute “content” not allowed on element “span” at this point.
The element “header” must not appear as a descendant of the “footer” element.
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The “contentinfo” role is unnecessary for element “footer”.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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