Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Duplicate attribute “tabindex”.
Attribute “href” not allowed on element “button” at this point.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Duplicate ID “s”.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “Layer_1”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Text not allowed in element “iframe” in this context.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
A slash was not immediately followed by “>”.
End tag had attributes.
Bad value “https://www.facebook.com/tr?id=1429434113735644&ev=PageView&noscript=1&cd[domain]=www.kipp.org” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “footer”.
The “aria-describedby” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “s” was here.
The “region” role is unnecessary for element “section”.
The first occurrence of ID “Layer_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “button” role is unnecessary for element “button”.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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