.logo{
position: absolute;
left: 50%;
margin-left: -90px;
top: 50%;
margin-top: -230px;
width: 180px;
height: 180px;
border-style: solid;
border-color: gray;
border-width: 1px;
background-color: white;
z-index:1;
visibility: hidden;
}

.titre-choix{
position: absolute;
left: 0px;
top: 0px;
width: 350px;
height: 100px;
z-index: 1;
visibility: hidden;
}
.titre-menu{
position: absolute;
left: 350px;
top: 0px;
width: 450px;
height: 20px;
background-color: black;
z-index: 1;
}
.titre-fond{
position: absolute;
left: 0px;
top: 0px;
width: 800px;
height: 100px;
z-index: 0;
background-color: gray;
}

.frameg{
position: absolute;
left: 0px;
top:0px;
width: 202px;
height: 99%;
overflow: auto;
border-style:solid;
border-width:0;
border-color:black;
background-color: #CA1F15;
z-index: -1;
visibility: visible;
}

.article{
position: absolute;
left: 58px;
top:160px;
width: 720px;
height: 70%;
z-index: 1;
visibility: visible;
}

.lay-diapo-command{
position: absolute;
left: 1px;
top: 1px;
width: 598px;
height: 19px;
background-image:url(images/fd_command_diapo.gif);
padding: 2px;
z-index: 1;
}

.std{
position: absolute;
left: 50%;
margin-left:-350px;
top:0px;
width: 700px;
border-style:solid;
border-width:0;
border-color:black;
text-align:left;
z-index: -1;
visibility: visible;
}