Unitedexplanations.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.
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
This document appears to be written in Spanish but the “html” start tag has “lang="en-GB"”. Consider using “lang="es"” (or variant) instead.
Errors:
Bad value “101b35453873fc5daee8d790-” for attribute “type” on element “script”: Subtype missing.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The element “header” must not appear as a descendant of the “header” element.
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