Vondom.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
A table row was 9 columns wide and exceeded the column count established by the first row (0).
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Start tag “a” seen but an element of the same type was already open.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Row 1 of a row group established by a “tbody” element has no cells beginning on it.
Attribute “rel” not allowed on element “img” at this point.
Attribute “ref” not allowed on element “img” at this point.
Stray end tag “a”.
Attribute “ref” not allowed on element “a” at this point.
Element “data” is missing required attribute “value”.
End tag “section” seen, but there were open elements.
Unclosed element “div”.
Duplicate attribute “type”.
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