Csc.fi W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “header” for attribute “role” on element “header”.
Stray end tag “input”.
Duplicate ID “p_p_id_82_”.
Duplicate ID “p_82”.
Attribute “type” not allowed on element “menu” at this point.
Attribute “csc” not allowed on element “a” at this point.
Attribute “english” not allowed on element “a” at this point.
Attribute “news” not allowed on element “a” at this point.
Attribute “web.csc.fi” not allowed on element “a” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “p_p_id_82_” was here.
The first occurrence of ID “p_82” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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