Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Errors:
Element “div” not allowed as child of element “menu” in this context. (Suppressing further errors from this subtree.)
Element “ul” not allowed as child of element “menu” in this context. (Suppressing further errors from this subtree.)
Duplicate attribute “class”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
End tag “a” violates nesting rules.
Stray end tag “span”.
Element “img” is missing required attribute “src”.
Bad value “true” for attribute “required” on element “input”.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Attribute “margin-bottom” not allowed on element “img” at this point.
Bad value “http://www.sciencesetavenir.fr/#xtor=CS1-48-[Lien_home]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/sante-maladie/#xtor=CS1-48-[Index_Maladies]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/nutrition/#xtor=CS1-48-[Nutrition]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/sante/#xtor=CS1-48-[Sante]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/high-tech/#xtor=CS1-48-[High_Tech]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/nature-environnement/#xtor=CS1-48-[Nature_Environnement]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
Bad value “http://www.sciencesetavenir.fr/espace/#xtor=CS1-48-[Espace]” for attribute “href” on element “a”: Illegal character in fragment: “[” is not allowed.
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