7dapei.com W3C HTML Markup Validation
HTML markup errors and warnings
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Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
Empty heading.
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The “language” attribute on the “script” element is obsolete.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.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
Errors:
Attribute “aria-combobox” not allowed on element “input” at this point.
Attribute “combobox” not allowed on element “input” at this point.
Element “input” is missing one or more of the following attributes: “aria-expanded”, “multiple”, “type”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “nobr” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Bad value “2015-12-05-End” for attribute “lang” on element “a”: The language subtag “2015” is not a valid language subtag.
End tag “div” seen, but there were open elements.
Unclosed element “section”.
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