Cmsimpact.org W3C HTML Markup Validation
HTML markup errors and warnings
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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”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “menu-item-home”.
End tag “header” seen, but there were open elements.
Unclosed element “div”.
The element “button” must not appear as a descendant of the “a” element.
Stray end tag “div”.
Warnings:
The first occurrence of ID “menu-item-home” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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