Expert360.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
End tag “button” seen, but there were open elements.
Unclosed element “span”.
End tag “header” seen, but there were open elements.
Unclosed element “div”.
Stray end tag “a”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
No space between attributes.
End tag “section” seen, but there were open elements.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
Duplicate ID “message”.
Element “legend” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
The first occurrence of ID “message” was here.
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