body {
background-attachment:fixed;
background-repeat:no-repeat; 
background-position: center 50%;
background-image:url('back.jpg');
}

.titre {
margin-left: 21.5%;
}

.fond {
text-align: center;
margin-left: 12.5%;
background-color:#D1CDDB;
width: 920px;
color:#550055;
filter:alpha(opacity=90);
-moz-opacity:0.9;
opacity: 0.1;
border-left:1px solid black;
border-right:1px solid black;
border-top:1px solid black;
border-bottom:1px solid black;
font-weight: bold;
font-size: 16pt;
font-family:papyrus,arial;
}

.texte_vert1 {
text-align: center;
width: 530px;
height: 50px;
color:#009900;
text-decoration:underline;
font-weight: bold;
font-size: 20pt;
font-family:papyrus,arial;
float:left;
}

.texte_vert2 {
text-align: center;
width: 530px;
height: 50px;
color:#009900;
text-decoration:underline;
font-weight: bold;
font-size: 20pt;
font-family:papyrus,arial;
float:center;
}

.image_gauche {
float:left;
margin-left:5%;
}

.image_gauche1 {
float:left;
margin-left:10%;
}

.image_gauche2 {
float:left;
margin-left:20%;
}

.image_droite {
float:right;
margin-right:5%;
}

.image_droite1 {
float:right;
margin-right:10%;
}

.image_droite2 {
float:right;
margin-right:15%;
}

.image_centre {
float:center;
}

.sous_titre{
text-align: center;
color:#003399;
font-size: 20pt;
font-family:papyrus,arial;
}

.texte {
text-align: center;
color:#003399;
font-size: 16pt;
font-family:papyrus,arial;
}