body{
 background-color:#FFFFFF;
 color:#666666;
 font:10px/16px Arial, Helvetica, sans-serif;
}

#principal{
 background-color:#FFFFFF;
 color:#666666;
 width:100%;
 height:100%;
 position: absolute; 
 left: 50%; 
 top: 50%; 
 width: 400px; 
 height: 400px; 
 margin-top: -20px; 
 margin-left: -100px; 
}

#imagen_centro{  
 width:218px;
 height:26px;
 position:absolute;
 left:0px;
 top:0px;
 margin:0; 
 padding:0; 
}

#principal_intro{
 background-color:#FFFFFF;
 color:#666666;
 width:100%;
 height:100%;
 position: absolute; 
 left: 50%; 
 top: 50%; 
 width: 1024px; 
 height: 705px; 
 margin-top: -300px; 
 margin-left: -500px; 
}

#flash{  
 width:1024px;
 position:absolute;
 left:0px;
 top:0px;
 margin:0; 
 padding:0; 
}