Errors:
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
End tag “a” violates nesting rules.
No “p” element in scope but a “p” end tag seen.
Bad value “heading” for attribute “role” on element “header”.
Duplicate attribute “style”.
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “a” not allowed as child of element “picture” in this context. (Suppressing further errors from this subtree.)
End tag “picture” seen, but there were open elements.
Unclosed element “a”.
Element “picture” is missing a required instance of child element “img”.
No “a” element in scope but a “a” end tag seen.
Duplicate attribute “class”.
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
United States US