Porsche-design.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://track.adform.net/Serving/TrackPoint/?pm=731597&ADFPageName=PD-HP-Nov16&ADFdivider=|” for attribute “src” on element “img”: Illegal character in query: “|” is not allowed.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “” for attribute “srcset” on element “source”: Must contain one or more image candidate strings.
Bad value “footer” for attribute “role” on element “footer”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “button” role is unnecessary for element “button”.
The “region” role is unnecessary for element “section”.
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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