Nremt.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “og: http://ogp.me/ns# fb:
http://www.facebook.com/2008/fbml” for attribute “prefix” on element “html”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “gcse:search” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “aria-labelledby” attribute must point to an element in the same document.
The “aria-describedby” attribute must point to an element in the same document.
Warnings:
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).
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
Element name “gcse:search” cannot be represented as XML 1.0.
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