/*desde aqui hoja de estilo de la precarga*/   
#preloader2 {
  position: fixed;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background-color:#1f4084; /* color de fondo segun institucion */
  z-index:99999; /* makes sure it stays on top */
}
#status {
  width:150px;
  height:38px;
  position:absolute;
  left:50%; /* centers the loading animation horizontally one the screen */
  top:50%; /* centers the loading animation vertically one the screen */
  background-image:url("pre.gif");
  z-index:9999; /* path to your loading animation */
  background-repeat:no-repeat;
  background-position:center;
  margin:0 0 0 0; /* is width and height divided by two */
}  


#centrado {
  width:150px;
  height:120px;
  position:absolute;
  left:50%; /* centers the loading animation horizontally one the screen */
  top:50%; /* centers the loading animation vertically one the screen */
  background-image:url("pre_163.png");
  z-index:9999; /* path to your loading animation */
  background-repeat:no-repeat;
  background-position:center;
  margin:-140px 0 0 0; /* is width and height divided by two */
}