Se-unsa.org 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The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “campagne” was here.
The first occurrence of ID “adhesion” was here.
The first occurrence of ID “aade” was here.
Errors:
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “align” attribute on the “tr” element is obsolete.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.
Attribute “target” not allowed on element “img” at this point.
The element “button” must not appear as a descendant of the “a” element.
The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.
Duplicate ID “campagne”.
Duplicate ID “adhesion”.
Duplicate ID “aade”.
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