Precore.net W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
The “navigation” role is unnecessary for element “nav”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Errors:
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “datatype” not allowed on element “span” 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.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “follow” for attribute “rel” on element “a”: The string “follow” is not a registered keyword.
End tag “br”.
Attribute “content” not allowed on element “span” at this point.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
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