#centre {
float:left;
width:350px;
}

#right{
margin-left:350px;

}
p{
line-height:15px;

} 

#centre li{
list-style: url("../image/puce2.gif");
margin-left:2em;
}

#basgauche{
clear:both;
float:left;
width:350px;
height:400px;
margin-left:3px;

background: url("../image/devis2.jpg") left top no-repeat;
}