Oushinet.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
CSS: Parse Error.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
CSS: “writing-mode”: “tb-rl” is not a “writing-mode” value.
Stray end tag “a”.
Stray end tag “div”.
Warnings:
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The “language” attribute on the “script” element is obsolete. You can safely omit it.
Text run is not in Unicode Normalization Form C.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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