Karlaroundtheworld.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Attribute “rel” not allowed on element “button” at this point.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “script” must not have attribute “defer” unless attribute “src” is also specified.
The “aria-controls” attribute must point to an element in the same document.
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The “border” attribute is obsolete.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.
The “contentinfo” role is unnecessary for element “footer”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
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