Vikingeskibsmuseet.dk W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “modulepreload”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “div” is missing one or more of the following attributes: “role”.
Bad value “complementary” for attribute “role” on element “nav”.
The “main” element must not appear as a descendant of the “section” element.
Bad value “2019-15-07” for attribute “datetime” on element “time”: Month cannot be greater than 12.
Bad value “2019-21-07” for attribute “datetime” on element “time”: Month cannot be greater than 12.
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