Disys.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:article” not allowed here.
A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.
Bad value “X-Frame-Options” for attribute “http-equiv” on element “meta”.
Element “li” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
The string following “&” was interpreted as a character reference. (“&” probably should have been escaped as “&”.)
Stray start tag “a”.
Stray end tag “a”.
Stray start tag “img”.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Element “option” without attribute “label” must not be empty.
Duplicate attribute “alt”.
Duplicate attribute “class”.
The “center” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “div”.
Stray start tag “style”.
Cannot recover after last error. Any further errors will be ignored.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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