Errors:
Bad value “only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: portrait)” for attribute “media” on element “link”: Deprecated media feature “min-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
Bad value “only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: landscape)” for attribute “media” on element “link”: Deprecated media feature “min-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
Bad value “only screen and (max-device-width: 640px)” for attribute “media” on element “link”: Deprecated media feature “max-device-width”. For guidance, see the Deprecated Media Features section in the current Media Queries specification.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “retina_logo_url” not allowed on element “img” at this point.
Duplicate ID “learn-more”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “table” element is obsolete. Use CSS 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 “span”.
Warnings:
The “main” role is unnecessary for element “main”.
The first occurrence of ID “learn-more” was here.
The “contentinfo” role is unnecessary for element “footer”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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