Learnalanguage.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “F” instead.
Attribute “value” not allowed on element “input” at this point.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “t” instead.
Element “su:badge” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Element name “su:badge” cannot be represented as XML 1.0.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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