.carta-box {
    margin: 20px;
    width: 200px;
    height: 250px;
    position: relative;
    perspective: 1000px;
  }
  
  .carta-box:hover .carta {
      transform: rotateY(180deg);
  }
  
  .carta {
    transform-style: preserve-3d;
    transition: all 0.5s linear;
  }
  
  .cara {
    position: absolute;
    backface-visibility: hidden;
    border: 1px solid black;
  }
  
  .cara.detras {
    transform: rotateY(180deg);
  }