Qualitymatters.org W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Attribute “}}” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Attribute “}}” not allowed on element “div” at this point.
Attribute “about” not allowed on element “div” at this point.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “aria-labelledby” attribute must point to an element in the same document.
United States US