Porta.com.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “select”.
Stray end tag “source”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Element “h3” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
Stray end tag “main”.
Bad value “https://track.adform.net/Serving/TrackPoint/?pm=347591&ADFPageName=Porta|remarketing|ogolny&ADFdivider=|” for attribute “src” on element “img”: Illegal character in query: “|” is not allowed.
Bad value “https://track.adform.net/Serving/TrackPoint/?pm=775770&ADFPageName=byli_na_www-porta&ADFdivider=|” for attribute “src” on element “img”: Illegal character in query: “|” is not allowed.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “form” role is unnecessary for element “form”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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