Ilnapolista.it W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Forbidden code point U+0003.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
Duplicate ID “frasi”.
Duplicate ID “frase-left”.
Duplicate ID “frase-right”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “484px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The value of attribute “src” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
The first occurrence of ID “frasi” was here.
The first occurrence of ID “frase-left” was here.
The first occurrence of ID “frase-right” was here.
The value of attribute “srcset” on element “img” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.
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