Vs.ch W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Stray end tag “link”.
Attribute “aria-selected” not allowed on element “li” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “search-field-input”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “data-” not allowed on element “img” at this point.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “search-field-input” was here.
The “contentinfo” role is unnecessary for element “footer”.
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