Onthisday.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
Attribute “href” not allowed on element “button” at this point.
The element “a” must not appear as a descendant of the “button” element.
Duplicate attribute “href”.
Bad value “https://twitter.com/intent/tweet?text=Historical events, famous birthdays, weddings and notable deaths on this day in history&url=https://www.onthisday.com/&via=OnThisDaycom” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Stray end tag “div”.
Attribute “cbola_wid” not allowed on element “script” at this point.
End tag “div” seen, but there were open elements.
Unclosed element “section”.
Stray end tag “section”.
The element “header” must not appear as a descendant of the “footer” element.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “banner” role is unnecessary for element “header”.
The “main” role is unnecessary for element “main”.
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