Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “charset” attribute on the “script” element is obsolete.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Empty heading.
Errors:
CSS: “background”: Lexical error at line 6, column 15. Encountered: ";" (59), after : "#".
CSS: “background”: Lexical error at line 7, column 21. Encountered: ";" (59), after : "#".
CSS: “background”: Parse Error.
Stray end tag “script”.
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.)
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Stray doctype.
Stray start tag “html”.
Start tag “body” seen but an element of the same type was already open.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Unclosed element “main”.
Stray end tag “div”.
End tag “main” seen, but there were open elements.
A document must not include more than one visible “main” element.
Bad value “true” for attribute “required” on element “input”.
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
End tag “div” seen, but there were open elements.
Unclosed element “footer”.
Stray end tag “footer”.
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