Lvm.de W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “main” role is unnecessary for element “main”.
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).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “col” was here.
Errors:
Bad value “bookmark” for attribute “rel” on element “link”: The string “bookmark” is not a registered keyword.
Attribute “size” not allowed on element “link” at this point.
Attribute “alt” not allowed on element “input” at this point.
Element “label” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
Duplicate ID “col”.
End tag “div” seen, but there were open elements.
Unclosed element “main”.
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