Plagiarism-checker.me W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “div” is missing one or more of the following attributes: “role”.
The “center” element is obsolete. Use CSS instead.
Attribute “value” not allowed on element “textarea” at this point.
Attribute “0” not allowed on element “input” at this point.
Attribute “value” not allowed on element “input” at this point.
Bad value “Upload
File” for attribute “placeholder” on element “input”: Line feed not allowed.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Stray end tag “form”.
Stray end tag “div”.
Element “h2” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “0” is not serializable 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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