Dmi.dk W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “navigation” for attribute “role” on element “ul”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “summary” attribute on the “table” element is obsolete. Consider describing the structure of the “table” in a “caption” element or in a “figure” element containing the “table”; or, simplify the structure of the “table” so that no description is needed.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “th” element is obsolete. Use CSS instead.
The element “button” must not appear as a descendant of the “a” element.
Warnings:
The “complementary” role is unnecessary for element “aside”.
The “contentinfo” role is unnecessary for element “footer”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Denmark DK