Endeavor.org.br W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “meta” is missing one or more of the following attributes: “content”, “property”.
No space between attributes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “srcset” on element “source”: Must contain one or more image candidate strings.
Element “quote” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “img” at this point.
End tag “button” did not match the name of the current open element (“path”).
End tag “button” seen, but there were open elements.
Unclosed element “path”.
Unclosed element “svg”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Consider avoiding viewport values that prevent users from resizing documents.
The “main” role is unnecessary for element “main”.
Attribute “"” is not serializable as XML 1.0.
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