Cinfo.ch W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Attribute “about” not allowed on element “div” at this point.
Text not allowed in element “ul” in this context.
Attribute “datatype” not allowed on element “span” at this point.
Attribute “content” not allowed on element “span” at this point.
Bad value “mailto:info[at]cinfo.ch” for attribute “href” on element “a”: Illegal character in scheme data: “[” is not allowed.
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