Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “0"” is not serializable as XML 1.0.
Attribute “1"” is not serializable as XML 1.0.
Attribute “2"” is not serializable as XML 1.0.
Attribute “3"” is not serializable as XML 1.0.
Attribute “4"” is not serializable as XML 1.0.
Attribute “5"” is not serializable as XML 1.0.
Attribute “6"” is not serializable as XML 1.0.
Attribute “7"” is not serializable as XML 1.0.
Attribute “8"” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Errors:
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.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “img”.
No space between attributes.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “0"” not allowed on element “div” at this point.
Attribute “img-array” not allowed on element “div” at this point.
Attribute “1"” not allowed on element “div” at this point.
Attribute “2"” not allowed on element “div” at this point.
Attribute “3"” not allowed on element “div” at this point.
Attribute “4"” not allowed on element “div” at this point.
Attribute “5"” not allowed on element “div” at this point.
Attribute “6"” not allowed on element “div” at this point.
Attribute “7"” not allowed on element “div” at this point.
Attribute “8"” not allowed on element “div” at this point.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Attribute “alt” not allowed on element “div” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Attribute “name” not allowed on element “div” at this point.
End tag “br”.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
End tag for “body” seen, but there were unclosed elements.
Unclosed element “section”.
Stray end tag “section”.
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