Cyberdefinitions.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad character “3” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Bad character “2” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Element “span” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Bad character “4” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
The “center” element is obsolete. Use CSS instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “html”.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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