Columbusenergy.pl W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Empty heading.
Errors:
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Stray end tag “span”.
End tag “div” seen, but there were open elements.
Unclosed element “span”.
The element “label” must not appear as a descendant of the “label” element.
Element “style” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “alt”.
No space between attributes.
The “aria-labelledby” attribute must point to an element in the same document.
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