Esmap.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Attribute “showlabel” not allowed on element “span” at this point.
Attribute “autocomplete” not allowed on element “div” at this point.
Bad value “” for attribute “name” on element “button”: Must not be empty.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “src” not allowed on element “input” at this point.
The “align” attribute on the “input” element is obsolete. Use CSS instead.
Stray start tag “script”.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “navigation” role is unnecessary for element “nav”.
Empty heading.
The “contentinfo” role is unnecessary for element “footer”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
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