Eol.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:og” not allowed here.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Bad value “https://support.si.edu/site/SPageServer?pagename=api_eol_main\&s_src=web_eol_hl” for attribute “href” on element “a”: Illegal character in query: “\” is not allowed.
Attribute “data_error” not allowed on element “input” at this point.
Attribute “data_unchanged” not allowed on element “input” at this point.
No “p” element in scope but a “p” end tag seen.
Bad value “alen som” for attribute “cite” on element “blockquote”: Illegal character in path segment: space is not allowed.
Element “ul” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Bad value “https://support.si.edu/site/SPageServer?pagename=api_eol_main\&s_src=web_eol_fl” for attribute “href” on element “a”: Illegal character in query: “\” is not allowed.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
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