/* CSS Document */

#centro{
	margin-left: auto;
    margin-right: auto;
	text-align:center;
}
#abajo{
	margin-left: auto;
	margin-right: auto;
	text-align: center;
}
#darken {
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    display:none;
    z-index:199;
    background:black;
    opacity:1;
    filter:Alpha(opacity=50); // Transparency in IE 
}
 
#Alerta {
	
    width:250px;
    height:150px;
   /* margin-left:;
    margin-top:-200px;*/
    display:none;
    background:white;
    font-size:12px;
    color:black;
    z-index:300;
}