Ereadingworksheets.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Stray end tag “meta”.
End tag “div” seen, but there were open elements.
Unclosed element “a”.
The “type” attribute on the “li” element is obsolete. Use CSS instead.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Duplicate ID “c1-sidebar-ad”.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No “li” element in scope but a “li” end tag seen.
Stray start tag “script”.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
The first occurrence of ID “c1-sidebar-ad” was here.
Attribute “aria-required” is unnecessary for elements that have attribute “required”.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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