Errors:
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 “div” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)
Bad value “tel:+31 152 755 715” for attribute “href” on element “a”: Illegal character in scheme data: space is not allowed.
End tag “br”.
End tag “li” seen, but there were open elements.
Unclosed element “b”.
Element “b” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
End tag “ul” seen, but there were open elements.
End tag “nav” seen, but there were open elements.
End tag “div” seen, but there were open elements.
End tag “aside” seen, but there were open elements.
Element “section” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “notif-messages”.
The “hspace” attribute on the “img” element is obsolete. Use CSS instead.
The “vspace” attribute on the “img” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Forbidden code point U+0008.
End tag “section” seen, but there were open elements.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
Element “div” not allowed as child of element “b” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “back-to-top”.
End tag for “body” seen, but there were unclosed elements.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
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).
The first occurrence of ID “notif-messages” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “back-to-top” was here.
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