Ucanr.edu W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “main” role is unnecessary for element “main”.
Empty heading.
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.
Errors:
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “action” on element “form”: Must be non-empty.
The element “button” must not appear as a descendant of the “a” element.
The element “button” must not appear as a descendant of an element with the attribute “role=button”.
Element “h2” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “span” 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-labelledby” attribute must point to an element in the same document.
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