Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “xmlns:v” not allowed here.
Attribute “effect” not allowed on element “a” at this point.
Attribute “alt” not allowed on element “a” at this point.
Attribute “effect” not allowed on element “img” at this point.
Duplicate ID “subbox”.
Duplicate ID “subbutton”.
Start tag “a” seen but an element of the same type was already open.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “div” seen, but there were open elements.
Unclosed element “a”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
Element “style” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
The element “iframe” must not appear as a descendant of the “a” element.
End tag for “body” seen, but there were unclosed elements.
Warnings:
Attribute with the local name “xmlns:v” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “complementary” role is unnecessary for element “aside”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “subbox” was here.
The first occurrence of ID “subbutton” was here.
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