.flip-card {
    background-color: transparent;
    width: 100%;
    height: 100%;
    perspective: 1000px;
  }
  
  .flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
  }
  
  /*
  .flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
  }
  */
  
  .flip-card-filip{
    transform: rotateY(180deg);
  }
  
  
  
  
  .flip-card-front, .flip-card-back {
    position: relative;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }
  
  .flip-card-front {
  
  }
  
  .rY180{
    transform: rotateY(180deg);
  }
  
  
  .flip-card-back {
    background-color: rgba(157,157,157,0.8);
    color: white;
    transform: rotateY(180deg);
    position: absolute;
    top: 0;
    left: 0;
  }
  
  .flip-card-title{
    position: absolute;
    left: 50%;
    top: 50%;
    color: white;
    text-align: center;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.2);
    font-weight: bold;
    font-size: 27px;
    width: 100%;
  }
  
  .flip-card-description{
    position: absolute;
    left: 50%;
    top: 50%;
    color: white;
    text-align: center;
    font-size: 20px;
  }
  
  .top-control-menu{
    margin-top: 50px;
  }

  .header-fixed {
    background-color: #fff;
}