Chaldal.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.
The first occurrence of ID “Calque_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “Capa_1” was here.
The first occurrence of ID “Layer_1” was here.
Text run is not in Unicode Normalization Form C.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Errors:
Element “link” is missing one or more of the following attributes: “href”, “itemprop”, “property”, “rel”.
Stray end tag “link”.
Duplicate ID “Calque_1”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “Capa_1”.
Duplicate ID “Layer_1”.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “itemprop” attribute was specified, but the element is not a property of any item.
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