Ksuowls.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”.
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 “content-ad” was here.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Errors:
Bad value “/sports/2015/7/16/Corporate Sponsorships.aspx” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Duplicate ID “content-ad”.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
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