22squared.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “xmlns:fb” not allowed here.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
Duplicate ID “Layer_1”.
Stray doctype.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “Social_x5F_Icon_x5F_Facebook”.
Duplicate ID “Layer_1_1_”.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “Layer_1” 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).
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Social_x5F_Icon_x5F_Facebook” was here.
The first occurrence of ID “Layer_1_1_” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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