#pop {
display: none;
position: absolute;
bottom: 250px;
right: 400px; 
width: 450px;
border: 3px double black;
background: #f5f5dc;
z-index: 1500;
cursor: pointer;
font-size: 80%;
background: #f5f5dc;

cursor: pointer;
font-size: 80%;
}
#pop p {
margin: 0 0.3em;
}
#pop h1 {
font-size: 110%;
margin: 0 0 0.5em 0;
border-bottom: 1px solid black;
background: white url(top.gif) left top repeat-x;
color: black;
text-align: center;
}
.fermer {
margin: 0.5em 0 0 0;
border-top: 1px solid black;
background: white url(bottom.gif) left top repeat-x;
color: black;
text-align: center;
}