Errors:
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
A document must not include more than one “meta” element with a “charset” attribute.
Attribute “responsive_uri” not allowed on element “body” at this point.
Attribute “responsive_uri” not allowed on element “div” at this point.
Attribute “responsive_uri” not allowed on element “nav” at this point.
Attribute “responsive_uri” not allowed on element “ul” at this point.
Attribute “responsive_uri” not allowed on element “form” at this point.
Attribute “responsive_uri” not allowed on element “label” at this point.
Attribute “responsive_uri” not allowed on element “input” at this point.
Attribute “responsive_uri” not allowed on element “button” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
Attribute “responsive_uri” not allowed on element “img” at this point.
Attribute “about” not allowed on element “article” at this point.
Attribute “responsive_uri” not allowed on element “article” at this point.
Attribute “responsive_uri” not allowed on element “span” at this point.
Duplicate attribute “id”.
Duplicate attribute “responsive_uri”.
End tag “div” seen, but there were open elements.
Unclosed element “main”.
Stray end tag “main”.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “aria-labelledby” attribute must point to an element in the same document.
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 “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “complementary” role is unnecessary for element “aside”.
The “contentinfo” role is unnecessary for element “footer”.
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