*{
    background: none ! important;
    background-color: #fff ! important;
}

#contenu, #conteneur3, #conteneur2, #conteneur, #conteneur4, select {
    border: none ! important;
}

#top, #bottom, #contenu_droite2, #chemin, #imprimer {
    display:none ! important;;
}

#contenu_gauche, #contenu_gauche2 {
    width: 99% ! important;;
}