Iranwatch.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Start tag “head” seen but an element of the same type was already open.
Element “input” is missing required attribute “alt”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “about” not allowed on element “article” at this point.
Attribute “datatype” not allowed on element “span” at this point.
Attribute “content” not allowed on element “span” at this point.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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).
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