Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
The “align” attribute on the “div” element is obsolete.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.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate ID “content_cgjobs”.
Bad value “mailto:info@3dvf.fr?subject=Agenda JPO Ecole” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Duplicate ID “h_left700”.
Attribute “alt” not allowed on element “a” at this point.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Duplicate ID “h_right300”.
Duplicate ID “div-gpt-ad-1441179375443-18”.
No space between attributes.
Stray end tag “div”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “content_cgjobs” was here.
The first occurrence of ID “h_left700” was here.
The first occurrence of ID “h_right300” was here.
The first occurrence of ID “div-gpt-ad-1441179375443-18” was here.
This document appears to be written in French. Consider adding “lang="fr"” (or variant) to the “html” start tag.
France FR