Aprendum.com W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Duplicate ID “menu_row_izq”.
Duplicate ID “contenedor_interno_menu”.
Duplicate ID “contenedor_interno_menu2”.
Element “img” is missing required attribute “src”.
Element “blockquote” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Bad value “filteritem” for attribute “role” on element “a”.
Duplicate attribute “title”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
The first occurrence of ID “menu_row_izq” was here.
The first occurrence of ID “contenedor_interno_menu” was here.
The first occurrence of ID “contenedor_interno_menu2” was here.
The “navigation” role is unnecessary for element “nav”.
Spain ES