Defense-92.fr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “content” not allowed on element “meta” at this point.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “complementary” role is unnecessary for element “aside”.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “contentinfo” role is unnecessary for element “footer”.
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