Gennera.com.br W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “value” not allowed on element “label” 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.
End tag “div” seen, but there were open elements.
Unclosed element “main”.
Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Stray end tag “main”.
Duplicate ID “secondary”.
Bad value “https://www.facebook.com/tr?id=260118044398303&ev=PageView
&noscript=1” for attribute “src” on element “img”: Tab, new line or carriage return found.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “secondary” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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