Multcolib.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
Duplicate attribute “id”.
Duplicate ID “research”.
No space between attributes.
Element “h2” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Warnings:
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “research” was here.
The “contentinfo” role is unnecessary for element “footer”.
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