Uship.fr 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 “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “maincontent” was here.
Errors:
Element “input” is missing required attribute “aria-expanded”.
Bad character “ ” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.
Forbidden code point U+009c.
Duplicate ID “maincontent”.
The element “button” must not appear as a descendant of the “a” element.
No “li” element in scope but a “li” end tag seen.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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