Cleofas.com.br W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The element “h1” must not appear as a descendant of the “address” element.
The element “h3” must not appear as a descendant of the “address” element.
Attribute “alt” not allowed on element “a” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “section”.
Stray end tag “section”.
Element “li” not allowed as child of element “aside” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Stray end tag “div”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
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