Arte.tv W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “true” for attribute “defer” on element “script”.
Attribute “list” not allowed on element “div” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Attribute “format” not allowed on element “div” at this point.
Element “img” is missing required attribute “src”.
Attribute “display” not allowed on element “h3” at this point.
Element “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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).
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