Qooah.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A slash was not immediately followed by “>”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
No space between attributes.
Duplicate attribute “action”.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Stray end tag “script”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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