Mateusz.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “type” not allowed on element “iframe” at this point.
Bad value “auto” for attribute “width” on element “iframe”: Expected a digit but saw “a” instead.
Bad value “auto” for attribute “height” on element “iframe”: Expected a digit but saw “a” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad element name “gcse:searchbox-only”: Code point “U+003A” is not allowed
End tag “h2” seen, but there were open elements.
Unclosed element “a”.
Start tag “a” seen but an element of the same type was already open.
No “p” element in scope but a “p” end tag seen.
Stray end tag “b”.
Warnings:
Element name “gcse:searchbox-only” cannot be represented as XML 1.0.
This document appears to be written in Polish. Consider adding “lang="pl"” (or variant) to the “html” start tag.
Poland PL