Toronto.edu 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The “profile” attribute on the “head” element is obsolete.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.
Attribute “type” not allowed on element “img” at this point.
Duplicate ID “main-nav”.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “name” on element “input”: Must not be empty.
Attribute “about” not allowed on element “div” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “datatype” not allowed on element “span” at this point.
Attribute “alt” not allowed on element “a” at this point.
Warnings:
The first occurrence of ID “main-nav” was here.
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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