#lightbox_container {
position: absolute;
top: 40px;
left: 0;
width: 100%;
height: 692px;
z-index: 100;
text-align: center;
}

#lightbox_container #header {
width:799px;
height:38px;
margin: auto;
background: #F5F5F5;/* url('../pix/ampliacion/logo.gif') no-repeat 0px;*/
border:0;
border-bottom:1px solid white;
}
#lightbox_container #header a {
display:block;
float:right;
padding-bottom:5px; 
.padding-bottom:1px; 
width:30px;
height:32px;
line-height: 34px;
background: url('../pix/ampliacion/x.gif') no-repeat 0px;
color:#F5F5F5;
}

#lightbox_container #header a:hover {
background-position: -149px;
color:#F60;
text-decoration:none;
}

#lightbox {
width: 799px;
height: 100%;
}

#overlay{
position: absolute;
top: 0;
left: 0;
z-index: 90;
width: 100%;
height: 100%;
}
#oscurecer {
width: 100%;
height: 100%;
background-color: #000;
-moz-opacity: 0.7;
opacity: 0.7;
filter: alpha(opacity=70);
}