Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Attribute “rel” not allowed on element “div” at this point.
Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “classs” not allowed on element “a” at this point.
Bad value “74 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “76 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “48 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “59 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “3805 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “142 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “420 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “690 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “701 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “707 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “710 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “718 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
Bad value “2019 ” for attribute “id” on element “h3”: An ID must not contain whitespace.
The “label” element may contain at most one “button”, “input”, “meter”, “output”, “progress”, “select”, or “textarea” descendant.
Duplicate ID “searchform”.
Bad value “Google Plus” for attribute “id” on element “a”: An ID must not contain whitespace.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Element “p” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “img” at this point.
The element “button” must not appear as a descendant of the “a” element.
Duplicate ID “test”.
Attribute “rel” not allowed on element “button” at this point.
Stray end tag “main”.
End tag “br”.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
“label” element with multiple labelable descendants.
The first occurrence of ID “searchform” was here.
Attribute “"” is not serializable as XML 1.0.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “test” was here.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
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