Errors:
Bad value “bks-BKS” for attribute “hreflang” on element “link”: Bad extlang subtag “bks”.
Bad value “de-LL” for attribute “hreflang” on element “link”: Bad region subtag.
CSS: “border-width”: Parse Error.
CSS: “border-style”: Parse Error.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Attribute “alt” not allowed on element “a” at this point.
Attribute “x-webkit-speech” not allowed on element “input” at this point.
Bad value “navigation” for attribute “role” on element “a”.
Stray start tag “html”.
Stray start tag “head”.
Stray end tag “head”.
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 “section”.
Unclosed element “header”.
Stray end tag “div”.
Duplicate ID “background”.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Attribute “src-data” not allowed on element “img” at this point.
Attribute “format” not allowed on element “img” at this point.
Attribute “scale” not allowed on element “img” at this point.
Element “h2” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Attribute “value” not allowed on element “input” at this point.
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
The “acronym” element is obsolete. Use the “abbr” element instead.
The “aria-describedby” attribute must point to an element in the same document.
An element with “role=tab” must be contained in, or owned by, an element with “role=tablist”.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “textbox” role is unnecessary for an “input” element that has no “list” attribute and whose type is “text”.
The first occurrence of ID “background” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “navigation” role is unnecessary for element “nav”.
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