Thephantomoftheopera.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Text not allowed in element “iframe” in this context.
Duplicate ID “nav_menu-3”.
Duplicate ID “nav_menu-4”.
Duplicate ID “nav_menu-6”.
Duplicate ID “nav_menu-7”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
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 “nav_menu-3” was here.
The first occurrence of ID “nav_menu-4” was here.
The first occurrence of ID “nav_menu-6” was here.
The first occurrence of ID “nav_menu-7” was here.
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