Sharkninja.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “” for attribute “id” on element “svg”: Not a valid XML 1.0 name.
Bad value “” for attribute “aria-labelledby” on element “svg”: An IDREFS value must contain at least one non-whitespace character.
Duplicate ID “”.
Bad value “” for attribute “id” on element “title”: Not a valid XML 1.0 name.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “style” not allowed as child of element “form” in this context. (Suppressing further errors from this subtree.)
Attribute “href” not allowed on element “button” at this point.
Attribute “target” not allowed on element “button” at this point.
Bad value “” for attribute “id” on element “button”: An ID must not be the empty string.
Bad value “” for attribute “id” on element “a”: An ID must not be the empty string.
Stray start tag “script”.
Warnings:
The first occurrence of ID “” was here.
Empty heading.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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