Phdstudies.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “unesco_loading” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Errors:
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “unesco_loading”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “autocomplete” not allowed on element “button” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “name” on element “textarea”: Must not be empty.
The “aria-labelledby” attribute must point to an element in the same document.
The “itemprop” attribute was specified, but the element is not a property of any item.
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