Advancedinstaller.com W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
Bad value “Cache-control” for attribute “http-equiv” on element “meta”.
Attribute “xmlns:xs” not allowed here.
Attribute “xmlns:xlink” not allowed here.
Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “id” on element “section”: An ID must not be the empty string.
Duplicate ID “”.
Duplicate ID “sceneSupport”.
The “aria-controls” attribute must point to an element in the same document.
Warnings:
Attribute with the local name “xmlns:xs” is not serializable as XML 1.0.
Attribute with the local name “xmlns:xlink” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The first occurrence of ID “” was here.
The first occurrence of ID “sceneSupport” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
United States US