Ge.ch W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
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 “value” not allowed on element “meta” at this point.
Bad value “100px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “75px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “clearfix"” not allowed on element “section” at this point.
Attribute “about” not allowed on element “div” at this point.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Attribute “clearfix"” is not serializable as XML 1.0.
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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