Ifrs.edu.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 “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Bad value “6103” for attribute “rel” on element “a”: The string “6103” is not a registered keyword.
Bad value “2755” for attribute “rel” on element “a”: The string “2755” is not a registered keyword.
Bad value “2757” for attribute “rel” on element “a”: The string “2757” is not a registered keyword.
Bad value “982” for attribute “rel” on element “a”: The string “982” is not a registered keyword.
Bad value “2763” for attribute “rel” on element “a”: The string “2763” is not a registered keyword.
Bad value “2760” for attribute “rel” on element “a”: The string “2760” is not a registered keyword.
Bad value “1726” for attribute “rel” on element “a”: The string “1726” is not a registered keyword.
Bad value “1679” for attribute “rel” on element “a”: The string “1679” is not a registered keyword.
No “p” element in scope but a “p” end tag seen.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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