Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Element “title” must not be empty.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Element “fb:like” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “<” instead.
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Element “b” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Text not allowed in element “ul” in this context.
Element “hr” 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.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Attribute “targeti” not allowed on element “a” at this point.
Duplicate attribute “width”.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Empty heading.
Element name “fb:like” cannot be represented as XML 1.0.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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