Nantes-tourisme.com W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “” for attribute “name” on element “input”: Must not be empty.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
Bad value “100%” for attribute “height” on element “img”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Warnings:
The “banner” role is unnecessary for element “header”.
The “contentinfo” role is unnecessary for element “footer”.
Text run is not in Unicode Normalization Form C.
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