Uaem.mx W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “h3” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Duplicate attribute “id”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “a” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Warnings:
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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.
Mexico MX