Conrad.be W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “schema.DC” for attribute “rel” on element “link”: The string “schema.DC” is not a registered keyword.
Attribute “href” not allowed on element “meta” at this point.
Element “meta” is missing required attribute “content”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Bad value “” for attribute “tabindex” on element “button”: The empty string is not a valid integer.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “tabindex” on element “a”: The empty string is not a valid integer.
Element “source” is missing required attribute “srcset”.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Duplicate attribute “data-position”.
The element “a” must not appear as a descendant of the “button” element.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
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