Historianet.nl W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Bad value “Accept-CH” for attribute “http-equiv” on element “meta”.
Stray end tag “meta”.
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”.
Duplicate ID “form”.
Duplicate ID “search”.
Attribute “disable_imgix” not allowed on element “img” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “25px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “form” was here.
The first occurrence of ID “search” was here.
Netherlands NL