2datyvyhoda.ru 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.
Element “noindex” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “noindex” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “last"” not allowed on element “li” at this point.
Stray start tag “div”.
Warnings:
The “banner” role is unnecessary for element “header”.
Attribute “last"” is not serializable as XML 1.0.
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