Fundacionadecco.org W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Errors:
Bad value for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
End tag “span” seen, but there were open elements.
Unclosed element “a”.
No “a” element in scope but a “a” end tag seen.
Stray end tag “span”.
Start tag “a” seen but an element of the same type was already open.
End tag “a” violates nesting rules.
Stray end tag “a”.
The element “button” must not appear as a descendant of the “a” element.
The “center” element is obsolete. Use CSS instead.
No “p” element in scope but a “p” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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