Ufs.br W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Attribute “data” not allowed on element “a” at this point.
Element “tab” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Character reference was not terminated by a semicolon.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “280px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “h1” must not appear as a descendant of the “address” element.
Bad value “__blank” for attribute “target” on element “a”: Reserved keyword “_blank” used.
Stray start tag “script”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Empty heading.
Brazil BR