#cargando{
    display: none;
    position: fixed;
    left: 0px;
    
    top:50%;
    
    z-index: 1000; top: 30px; width: 100%; height: 100%; background: rgba( 80, 80, 80, .7 );
}

#cargando img{
     position: absolute; top: 50%; left: 50%;
     transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, 50%);
}
#cargando p{
    color: #fff; font-size: 3em; text-align: center;
    position: absolute;
    left: 50%;
    top: 45%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
}
#contenido{
    display: none;
	background-color: white;

	
}

#volver input[type=button]{
    position: fixed;
    z-index: 99999;
    
	font-size: 1.2em;
    bottom: 20px;
    padding: 10px 25px;
	border: none;
	background-color: #34495E;
	color: #ffffff;
	text-align: center;
    opacity: 1;
	border-radius: 3px;
	font-family: inherit;
	-webkit-user-select: text;
	  animation-name: parpadeo;
  animation-duration: 1s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;

  -webkit-animation-name:parpadeo;
  -webkit-animation-duration: 1s;
  -webkit-animation-timing-function: linear;
  -webkit-animation-iteration-count: infinite;
}
#volver  input[type=button]:hover {
    background-color: #707F8E;
	  

}
.parpadea {
  
  animation-name: parpadeo;
  animation-duration: 1s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;

  -webkit-animation-name:parpadeo;
  -webkit-animation-duration: 1s;
  -webkit-animation-timing-function: linear;
  -webkit-animation-iteration-count: infinite;
}

@-moz-keyframes parpadeo{  
  0% { opacity: 1.0; }
  50% { opacity: 0.0; }
  100% { opacity: 1.0; }
}

@-webkit-keyframes parpadeo {  
  0% { opacity: 1.0; }
  50% { opacity: 0.0; }
   100% { opacity: 1.0; }
}

@keyframes parpadeo {  
  0% { opacity: 1.0; }
   50% { opacity: 0.0; }
  100% { opacity: 1.0; }
}

/* arrows */

select.classic {

  /* styling */
  //min-width: 240px;
  background-color: white;
  border: thin solid grey;
  border-radius: 4px;
  display: inline-block;
  font: inherit;
  line-height: 1.5em;
  padding: 0.5em 3.5em 0.5em 1em;

  /* reset */

  margin: 0;      
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, grey 50%),
    linear-gradient(135deg, grey 50%, transparent 50%),
    linear-gradient(to right, skyblue, skyblue);
  background-position:
    calc(100% - 20px) calc(1em + 2px),
    calc(100% - 15px) calc(1em + 2px),
    100% 0;
  background-size:
    5px 5px,
    5px 5px,
    2.5em 2.5em;
  background-repeat: no-repeat;
}

select.classic:focus {
  background-image:
    linear-gradient(45deg, white 50%, transparent 50%),
    linear-gradient(135deg, transparent 50%, white 50%),
    linear-gradient(to right, gray, gray);
  background-position:
    calc(100% - 15px) 1em,
    calc(100% - 20px) 1em,
    100% 0;
  background-size:
    5px 5px,
    5px 5px,
    2.5em 2.5em;
  background-repeat: no-repeat;
  border-color: grey;
  outline: 0;
}

input.button_blue
{
	height: 35px;
	background-color: #3498DB;
	border-bottom: 5px solid #2980B9;
	text-shadow: 0px -2px #2980B9;
	color: white;
}