Santosfc.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.
Bad value “pb” for attribute “hreflang” on element “link”: The language subtag “pb” is not a valid ISO language part of a language tag.
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 “pb” for attribute “hreflang” on element “a”: The language subtag “pb” is not a valid ISO language part of a language tag.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “complementary” role is unnecessary for element “aside”.
The value of attribute “alt” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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