Unicesumar.edu.br W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “pt_BR” for attribute “lang” on element “html”: The language subtag “pt_br” is not a valid language subtag.
Attribute “me” not allowed on element “link” at this point.
Attribute “dia” not allowed on element “link” at this point.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
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 “body” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “contentinfo” role is unnecessary for element “footer”.
Brazil BR