#principal {
text-align: center;
background-image: url("../gif/accueil/background.jpg");
margin: auto;
margin-top: 50px;
width: 902px;
height: 524px;
}
.cadre_liens_menu {
position: relative;
display: block;
}
.liens_menu {
position: absolute;
display: block;
}
.cadre_menu {
background-image: url("../gif/accueil/info_bkg.jpg");
width: 453px;
height: 87px;
display: none;
}
.txt_cadre_menu {
text-align: justify;
width: 290px;
height: 59px;
margin-left: 25px;
}