Errors:
Bad value “ImageToolbar” for attribute “http-equiv” on element “meta”.
Bad value “” for attribute “name” on element “button”: Must not be empty.
Attribute “datatype” not allowed on element “span” at this point.
Attribute “content” not allowed on element “span” at this point.
Attribute “about” not allowed on element “div” at this point.
Duplicate attribute “class”.
Attribute “alt” not allowed on element “div” at this point.
Attribute “alt” not allowed on element “a” at this point.
Duplicate ID “search-api-page-search-form-site-search”.
Duplicate ID “edit-keys-11”.
Duplicate ID “edit-submit-11”.
Attribute “about” not allowed on element “article” 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.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Attribute “about” not allowed on element “figure” at this point.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
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).
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “search-api-page-search-form-site-search” was here.
The first occurrence of ID “edit-keys-11” was here.
The first occurrence of ID “edit-submit-11” was here.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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