Reykjavik.is W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
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.
Element “h4” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Attribute “about” not allowed on element “div” at this point.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Attribute “value” not allowed on element “a” at this point.
Bad value “contentinfo” for attribute “role” on element “section”.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Bad value “auto” for attribute “height” on element “img”: Expected a digit but saw “a” instead.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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