Postnl.nl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “40px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “39px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “https://jouw.postnl.nl/?L={4}&B={1}&P={2}&D={3}&T=C” for attribute “action” on element “form”: Illegal character in query: “{” is not allowed.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Bad value “true” for attribute “defer” on element “script”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Empty heading.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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