Ebayinc.com W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
Attribute “addthis:url” is not serializable as XML 1.0.
Attribute “addthis:title” is not serializable as XML 1.0.
The “contentinfo” role is unnecessary for element “footer”.
Errors:
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “iframe” must not appear as a descendant of the “a” element.
Attribute “addthis:url” not allowed on element “a” at this point.
Attribute “addthis:title” not allowed on element “a” at this point.
Bad value “” for attribute “tabindex” on element “a”: The empty string is not a valid integer.
The “aria-owns” attribute must point to an element in the same document.
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