Bioethanolcarburant.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “”alternate”” for attribute “rel” on element “link”: The string “”alternate”” is not a registered keyword.
Bad value “”fr”” for attribute “hreflang” on element “link”: The language subtag “”fr”” is not a valid language subtag.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “max-length” not allowed on element “input” at this point.
Duplicate attribute “data-cycle-timeout”.
Element “option” without attribute “label” must not be empty.
“select” start tag where end tag expected.
Stray start tag “script”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
This document appears to be written in French. Consider adding “lang="fr"” (or variant) to the “html” start tag.
France FR