Vologdainfo.ru W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “form” role is unnecessary for element “form”.
The “navigation” role is unnecessary for element “nav”.
The “charset” attribute on the “script” element is obsolete.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
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