Memo-linux.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “”publisher”/” for attribute “rel” on element “link”: The string “”publisher”/” is not a registered keyword.
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “border” not allowed on element “input” at this point.
Element “ul” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
Element “area” is missing required attribute “alt”.
End tag “p” seen, but there were open elements.
Unclosed element “noscript”.
Stray end tag “noscript”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “contentinfo” role is unnecessary for element “footer”.
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).
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