Labanquepostale.fr 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”.
Attribute “defaultvalue” not allowed on element “a” at this point.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
The element “a” must not appear as a descendant of the “button” element.
Stray end tag “span”.
Attribute “rel” not allowed on element “svg” at this point.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Attribute “autocorrect” not allowed on element “input” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Attribute “name” not allowed on element “span” at this point.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
The “contentinfo” role is unnecessary for element “footer”.
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