Document.ua W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Bad value “popup” for attribute “rel” on element “a”: The string “popup” is not a registered keyword.
Attribute “rel” not allowed on element “ul” at this point.
The “clear” attribute on the “br” element is obsolete. Use CSS instead.
Duplicate ID “ctdat”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “level3”.
The “center” element is obsolete. Use CSS instead.
Stray end tag “embed”.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
Stray end tag “center”.
Stray end tag “div”.
The “align” attribute on the “img” element is obsolete. Use CSS instead.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.
Warnings:
The first occurrence of ID “ctdat” was here.
The first occurrence of ID “level3” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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