Neos-guide.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “article” role is unnecessary for element “article”.
The “contentinfo” role is unnecessary for element “footer”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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).
Errors:
Duplicate attribute “id”.
Attribute “about” not allowed on element “article” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “content” not allowed on element “span” at this point.
The “center” element is obsolete. Use CSS instead.
Attribute “alink” not allowed on element “span” at this point.
The “font” element is obsolete. Use CSS instead.
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