Ufpr.br W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
Duplicate attribute “rel”.
Attribute “disabled” not allowed on element “link” at this point.
Malformed byte sequence: “e1”.
Bad start tag in “p” in “head”.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
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