Frenchtoday.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:addthis” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “mega-toggle-block-1”.
End tag “div” seen, but there were open elements.
Unclosed element “main”.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
Stray end tag “main”.
Stray end tag “div”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:addthis” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “mega-toggle-block-1” was here.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
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