Patternbank.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
End tag “li” implied, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
No “a” element in scope but a “a” end tag seen.
Stray end tag “a”.
No “li” element in scope but a “li” end tag seen.
Element “abbrev” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Element “abbrev” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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