Atlantic.fr W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “fr_FR” for attribute “lang” on element “html”: The language subtag “fr_fr” is not a valid language subtag.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “default” for attribute “type” on element “button”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “charset” attribute on the “script” element is obsolete.
France FR