300polityka.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “post-439107” was here.
The first occurrence of ID “post-439033” was here.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “post-439107”.
Duplicate ID “post-439033”.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “http://300polityka.pl/"” for attribute “href” on element “a”: Illegal character in path segment: “"” is not allowed.
The element “header” must not appear as a descendant of the “footer” element.
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