Groupo.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
Attribute “xmlns:a” not allowed here.
No space between attributes.
Element “div” is missing one or more of the following attributes: “role”.
Bad value “http://” for attribute “href” on element “a”: Invalid host: empty host.
Bad value “true” for attribute “muted” on element “video”.
Element “source” is missing required attribute “src”.
Bad value “” for attribute “srcset” on element “source”: Must contain one or more image candidate strings.
Warnings:
Attribute with the local name “xmlns:a” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
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