.flip-card {
  
    perspective: 1000px;
    max-width: 35rem;
    min-height: 35rem;
    width: 100%;
    background-color: #e3e3e3;
    padding: 1rem;
    margin: 4rem;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  /* box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2); */
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.flip-card-front {
  background-color: #d9d9d9;
    color: #525252;
    padding:1rem;
     
}

.flip-card-back {
  background-color: black;
  color: white;
  transform: rotateY(180deg);
}
  /* .cards_outer{
    min-height: 50rem;
    background-color: #e3e3e3;
    padding: 3rem;

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  } */
  /* .card_stl{
    max-width: 30rem;
    min-height: 60rem;
    width: 100%;
    background-color: #f2f2f2;
    padding: 1rem;
    margin: 4rem;
  } */

  .card_header{

  }
  .card_img{
    max-width: 31rem;
    min-height: 31rem;
  }