Errors:
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
Bad value “” for attribute “id” on element “a”: An ID must not be the empty string.
Attribute “alt” not allowed on element “svg” at this point.
Attribute “src” not allowed on element “image” at this point.
Duplicate ID “”.
Bad value “” for attribute “id” on element “li”: An ID must not be the empty string.
Duplicate attribute “aria-hidden”.
Duplicate ID “sign_in_ntnu”.
Duplicate ID “blackboard_ntnu”.
Duplicate ID “alumni_ntnu”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “longdesc” on element “img”: Must be non-empty.
The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.
Warnings:
Attribute “"” is not serializable as XML 1.0.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “” was here.
The first occurrence of ID “sign_in_ntnu” was here.
The first occurrence of ID “blackboard_ntnu” was here.
The first occurrence of ID “alumni_ntnu” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
The “contentinfo” role is unnecessary for element “footer”.
Norway NO