Errors:
Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.
Stray doctype.
Stray start tag “html”.
Start tag “head” seen but an element of the same type was already open.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Attribute “value” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “property”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Element “form” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “font” element is obsolete. Use CSS instead.
Bad value “button” for attribute “type” on element “a”: Subtype missing.
Attribute “autocomplete” not allowed on element “a” at this point.
Element “a” is missing required attribute “role”.
The element “a” must not appear as a descendant of the “button” element.
The element “footer” must not appear as a descendant of the “header” element.
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “meta” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “link” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
CSS: “background”: Parse Error.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “nav”.
Stray end tag “div”.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “header”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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).
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
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