body {
background: #cce3f5 url(../pictos_site_21/back.jpg) no-repeat center top;
}

#contenu-centre{
padding: 35px 62px 25px 42px;
}

#partie-sup {
height: 361px;
}

#centre{
background: transparent url(../pictos_site_21/back_centre_page_accueil.jpg) no-repeat center top;
}