Errors:
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
An element with “role=menuitem” must be contained in, or owned by, an element with “role=menubar” or “role=menu”.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Element “div” not allowed as child of element “h2” in this context. (Suppressing further errors from this subtree.)
Bad value “210px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Stray end tag “div”.
The “aria-controls” attribute must point to an element in the same document.
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 “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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