.encart_principal {background:url(/images/fondation_home.jpg) top right no-repeat; margin:15px auto; width:900px; height:523px;position:relative;}
.encart_principal img {margin:393px 0 0 4px; float:left;}
.encart_principal div {position:absolute; opacity: 0.6;filter:alpha(opacity=60); background:url(/images/fondation_home_fond.png) top left no-repeat; width:376px; height:160px; top:80px; left:0; }
.encart_principal div a{display:block; height:30px; width:300px; margin:87px 0 0 35px;}