Uksw.edu.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad start tag in “p” in “head”.
Stray end tag “noscript”.
Bad value “https://www.facebook.com/tr?id=438923853130285&ev=PageView
&noscript=1” for attribute “src” on element “img”: Tab, new line or carriage return found.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Stray end tag “section”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Attribute “content” not allowed on element “div” at this point.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Poland PL