/* Responsive Full Background Image Using CSS
 * Tutorial URL: http://sixrevisions.com/css/responsive-background-image/
*/
body {
  /* Location of the image */
  background-image: url(https://gestiondidactica.cl/Seminarios/Form_Seminario/imagenes/cotizacionotec-bg.jpg);
  
  /* Image is centered vertically and horizontally at all times */
  background-position: center center;
  
  /* Image doesn't repeat */
  background-repeat: no-repeat;
  
  /* Makes the image fixed in the viewport so that it doesn't move when 
     the content height is greater than the image height */
  background-attachment: fixed;
  
  /* This is what makes the background image rescale based on its container's size */
  background-size: cover;
  
  /* Pick a solid background color that will be displayed while the background image is loading */
  background-color:#464646;
  
  /* SHORTHAND CSS NOTATION
   * background: url(background-photo.jpg) center center cover no-repeat fixed;
   */
   background-size: 100% 100%;
   animation: shrink 20s infinite alternate;
}

@keyframes shrink {
  0% {
    background-size: 150% 150%;
  }
  100% {
    background-size: 100% 100%;
  }
}

/* For mobile devices */
@media only screen and (max-width: 767px) {
  body {
    /* The file size of this background image is 93% smaller
     * to improve page load speed on mobile internet connections */
    background-color: #fff;
  }
}
*{
  font-family: 'Lato', sans-serif;

}
.card{
  background-color: #6D071A;
  color: #fff;
  width: 500px;
}
.card-body{
  padding: 0px;
}
.btn-primary{
  background: #3a3a3a;
  border-color: #3a3a3a;
}
.btn-primary:hover{
  background: #616161;
  border-color: #616161;
}
.card h1{
  color: #fff;
  font-size: 30px;
}