Afsinc.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Duplicate ID “navbar-menu--top”.
Attribute “about” not allowed on element “article” at this point.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “aria-controls” attribute must point to an element in the same document.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “navbar-menu--top” was here.
The “main” role is unnecessary for element “main”.
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”.
The “navigation” role is unnecessary for element “nav”.
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