Grimrock.net 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”.
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.
Stray end tag “source”.
The element “button” must not appear as a descendant of the “a” element.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS 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The “center” element is obsolete.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.)
Attribute “alt” not allowed on element “a” at this point.
End tag for “body” seen, but there were unclosed elements.
Unclosed element “div”.
Unclosed element “section”.
Stray end tag “div”.
End tag “div” seen, but there were open elements.
Stray end tag “section”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
Empty heading.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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