Paulminors.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “async'” not allowed on element “script” at this point.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Bad value “true” for attribute “muted” on element “video”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Stray end tag “a”.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
No space between attributes.
Attribute “checked” not allowed on element “input” at this point.
Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.
Warnings:
Attribute “async'” is not serializable as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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