Deungdutjai.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “type” not allowed on element “iframe” at this point.
Bad value “true” for attribute “allowfullscreen” on element “iframe”.
The “font” element is obsolete. Use CSS instead.
End tag “a” violates nesting rules.
No “font” element in scope but a “font” end tag seen.
End tag “p” seen, but there were open elements.
Unclosed element “strong”.
Element “p” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)
End tag “strong” violates nesting rules.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
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