Oem.com.mx W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The “center” element is obsolete. Use CSS instead.
Element “h4” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “a”.
No “li” element in scope but a “li” end tag seen.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
A slash was not immediately followed by “>”.
End tag had attributes.
End tag “section” seen, but there were open elements.
Unclosed element “ul”.
Unclosed element “div”.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
Empty heading.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
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