Innpoland.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Bad value “https://ad.doubleclick.net/ddm/trackimp/N4022.1530588NATEMAT.PL/B21647713.229029169;dc_trk_aid=427069112;dc_trk_cid=105972210;ord=[timestamp];dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=?” for attribute “src” on element “img”: Illegal character in path segment: “[” is not allowed.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “true” for attribute “async” on element “script”.
Warnings:
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Empty heading.
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