Nnna.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
The “center” element is obsolete. Use CSS instead.
End tag “center” seen, but there were open elements.
Unclosed element “div”.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Warnings:
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.
The “form” role is unnecessary for element “form”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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