.div_avec_Modal {
    position: fixed;
    font-family: Arial, Helvetica, sans-serif;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0,0,0,0.8);
    z-index: 99999;
    opacity:0;
    -webkit-transition: opacity 400ms ease-in;
    -moz-transition: opacity 400ms ease-in;
    transition: opacity 400ms ease-in;
    pointer-events: none;
}

.div_avec_Modal:target {
    opacity:1;
    pointer-events: auto;
}

    .div_avec_Modal  .div-modal {
    width: 650px;
    height: 90%;
    position: relative;
    margin: 10% auto;
    margin-top:10px;
    padding: 5px 20px 13px 20px;
    border-radius: 10px;
    background: #fff;
    background: -moz-linear-gradient(#fff, #999);
    background: -webkit-linear-gradient(#fff, #999);
    background: -o-linear-gradient(#fff, #999);
    
}
.div_avec_Modal  .div-modal>div{overflow: hidden;}


.close {
    background: #CC66FF;
    color: #FFFFFF;
    line-height: 25px;
    position: absolute;
    right: 20px;
    text-align: center;
    top: 10px;
    width: 24px;
    text-decoration: none;
    font-weight: bold;
    -webkit-border-radius: 12px;
    -moz-border-radius: 12px;
    border-radius: 12px;
    -moz-box-shadow: 1px 1px 3px #000;
    -webkit-box-shadow: 1px 1px 3px #000;
    box-shadow: 1px 1px 3px #000;
}

.close:hover { background: #CCC;}

#div_fenetre_modal>div{display:none} /*  cache les calques present dans la fenete*/