Errors:
Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)
No space between attributes.
Duplicate attribute “,”.
“<” in attribute name. Probable cause: “>” missing immediately before.
A slash was not immediately followed by “>”.
Attribute “,” not allowed on element “script” at this point.
Attribute “<” not allowed on element “script” at this point.
Attribute “script” not allowed on element “script” at this point.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “>” instead.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “preview3”.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
End tag “div” seen, but there were open elements.
Unclosed element “ul”.
Bad value for attribute “srcset” on element “img”: Expected width descriptor but found “960W” at “…sktop.png 960W,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Duplicate attribute “class”.
Bad value “100%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “li” not allowed as child of element “div” 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.
Duplicate ID “fb-root”.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
Stray end tag “ul”.
Bad value “follow” for attribute “rel” on element “a”: The string “follow” is not a registered keyword.
Bad value “no follow” for attribute “rel” on element “a”: The string “no” is not a registered keyword.
Warnings:
Attribute “,” is not serializable as XML 1.0.
Attribute “<” is not serializable as XML 1.0.
The first occurrence of ID “preview3” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “fb-root” was here.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Germany DE