Greatcontent.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
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.
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
A document must not include more than one “meta” element with its “name” attribute set to the value “description”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Bad value “banner” for attribute “role” on element “a”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Duplicate ID “”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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