Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “allow” not allowed on element “iframe” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bogus comment.
Attribute “date-slider” not allowed on element “div” at this point.
Bad value “” for attribute “dir” on element “div”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “p” implied, but there were open elements.
Unclosed element “strong”.
End tag “h2” seen, but there were open elements.
Element “form” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)
No “p” element in scope but a “p” end tag seen.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
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 “span” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
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