Ivw.de W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “link” role is unnecessary for element “a”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “banner” role is unnecessary for element “header”.
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 first occurrence of ID “text_resize_min” was here.
The first occurrence of ID “text_resize_reset” was here.
The first occurrence of ID “text_resize_max” was here.
The first occurrence of ID “text_resize_clear” was here.
Errors:
Element “h1” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “footer” element.
Duplicate ID “text_resize_min”.
Duplicate ID “text_resize_reset”.
Duplicate ID “text_resize_max”.
Duplicate ID “text_resize_clear”.
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