Errors:
Bad value “” for attribute “name” on element “button”: Must not be empty.
Element “dd” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Attribute “autocorrect” not allowed on element “input” at this point.
Attribute “autocapitalize” not allowed on element “input” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “block-topusermenu--3”.
Duplicate ID “topmenu_search”.
Duplicate ID “topmenu_newsletter”.
Duplicate ID “topmenu_user”.
Duplicate ID “target_topmenu”.
Duplicate ID “target_search”.
Duplicate ID “block-formulaireexposerecherchepage-2”.
Duplicate ID “views-exposed-form-recherche-page-2”.
Duplicate ID “edit-keys”.
Duplicate ID “edit-field-est-principal-value”.
Duplicate ID “edit-domaine”.
Duplicate ID “edit-niveau”.
Duplicate ID “edit-discipline”.
Duplicate ID “edit-class”.
Duplicate ID “edit-secondary”.
Duplicate ID “edit-secondary--content”.
Duplicate ID “edit-category”.
Duplicate ID “edit-type”.
Duplicate ID “edit-auteur”.
Duplicate ID “edit-isbn”.
Duplicate ID “edit-is-new”.
Duplicate ID “edit-submit-recherche”.
Duplicate ID “target_newsletter”.
Duplicate ID “block-abonnementsimplenews--3”.
Duplicate ID “simplenews-subscriptions-block-1ef85903-28b3-450a-883a-9ccb58fdb67c--3”.
Duplicate ID “edit-subscriptions-wrapper--3”.
Duplicate ID “edit-message--3”.
Duplicate ID “form-CsApoS9KaZNRcDM7FMqtiHzNXwI3YMCGuPvBF-gcRDA”.
Duplicate ID “edit-simplenews-subscriptions-block-1ef85903-28b3-450a-883a-9ccb58fdb67c--3”.
Duplicate ID “edit-mail-wrapper--3”.
Duplicate ID “edit-mail-0-value--3”.
Duplicate ID “edit-actions--124”.
Duplicate ID “edit-subscribe--3”.
Duplicate ID “target_user”.
Duplicate ID “user-login-form--121”.
Duplicate ID “edit-name--121”.
A document must not include more than one “autofocus” attribute.
Duplicate ID “edit-pass--121”.
Duplicate ID “form-83AdkPFQOSbWUkRKaUYuBysKVmqwGHK9NMXxsqlaa10”.
Duplicate ID “edit-user-login-form--121”.
Duplicate ID “edit-actions--123”.
Duplicate ID “edit-submit--121”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Duplicate ID “edit-actions--76”.
End tag “li” seen, but there were open elements.
Unclosed element “div”.
Attribute “about” not allowed on element “article” at this point.
Attribute “datatype” not allowed on element “span” at this point.
Stray end tag “js-bottom-placeholder”.
The “aria-describedby” attribute must point to an element in the same document.
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 “banner” role is unnecessary for element “header”.
The first occurrence of ID “block-topusermenu--3” was here.
The first occurrence of ID “topmenu_search” was here.
The first occurrence of ID “topmenu_newsletter” was here.
The first occurrence of ID “topmenu_user” was here.
The first occurrence of ID “target_topmenu” was here.
The first occurrence of ID “target_search” was here.
The first occurrence of ID “block-formulaireexposerecherchepage-2” was here.
The first occurrence of ID “views-exposed-form-recherche-page-2” was here.
The first occurrence of ID “edit-keys” was here.
The first occurrence of ID “edit-field-est-principal-value” was here.
The first occurrence of ID “edit-domaine” was here.
The first occurrence of ID “edit-niveau” was here.
The first occurrence of ID “edit-discipline” was here.
The first occurrence of ID “edit-class” was here.
The first occurrence of ID “edit-secondary” was here.
The first occurrence of ID “edit-secondary--content” was here.
The first occurrence of ID “edit-category” was here.
The first occurrence of ID “edit-type” was here.
The first occurrence of ID “edit-auteur” was here.
The first occurrence of ID “edit-isbn” was here.
The first occurrence of ID “edit-is-new” was here.
The first occurrence of ID “edit-submit-recherche” was here.
The first occurrence of ID “target_newsletter” was here.
The first occurrence of ID “block-abonnementsimplenews--3” was here.
The first occurrence of ID “simplenews-subscriptions-block-1ef85903-28b3-450a-883a-9ccb58fdb67c--3” was here.
The first occurrence of ID “edit-subscriptions-wrapper--3” was here.
The first occurrence of ID “edit-message--3” was here.
The first occurrence of ID “form-CsApoS9KaZNRcDM7FMqtiHzNXwI3YMCGuPvBF-gcRDA” was here.
The first occurrence of ID “edit-simplenews-subscriptions-block-1ef85903-28b3-450a-883a-9ccb58fdb67c--3” was here.
The first occurrence of ID “edit-mail-wrapper--3” was here.
The first occurrence of ID “edit-mail-0-value--3” was here.
The first occurrence of ID “edit-actions--124” was here.
The first occurrence of ID “edit-subscribe--3” was here.
The first occurrence of ID “target_user” was here.
The first occurrence of ID “user-login-form--121” was here.
The first occurrence of ID “edit-name--121” was here.
The first occurrence of ID “edit-pass--121” was here.
The first occurrence of ID “form-83AdkPFQOSbWUkRKaUYuBysKVmqwGHK9NMXxsqlaa10” was here.
The first occurrence of ID “edit-user-login-form--121” was here.
The first occurrence of ID “edit-actions--123” was here.
The first occurrence of ID “edit-submit--121” was here.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “edit-actions--76” was here.
The “article” role is unnecessary for element “article”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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