I'm trying to port a legacy page to a more responsive version. Legacy page: [http://www.galerie-insecte.org/galerie/pays2.php?pays=447]
My first try: [www.galerie-insecte.org/galerie/congo.php]
This works fine with FF, Chrome, Safari and Opera, but not with IE.
According to the responsive.css style sheet, the #fammenu should disappear at 900 pixels according to the CSS sheet:
div#fammenu { display: none; }
(how I'll make it available on another way remains open).
Do you see the evident error? TIA.