.acque-card {
  position: relative;
  /*top: 30%;
  left: 45%;*/
  width: 550px;
  height: 550px;
  /*margin: -150px;*/
  float: left;
  perspective: 800px;
}

.content {
  position: absolute;
  width: 100%;
  height: 100%;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);

  transition: transform 1s;
  transform-style: preserve-3d;
}

.acque-card:hover .content, .acque-card:active .content, .acque-card:focus .content {
  transform: rotateY( 180deg ) ;
  transition: transform 0.5s;
}
.front,
.back {
  padding: 15px;
  position: absolute;
  height: 100%;
  width: 100%;
  background: #ffdc69;
  /**line-height: 300px;**/
  color: #03446A;
  text-align: left;
  font-size: 16px;
  font-weight: 400;
  /*border-radius: 5px;*/
  backface-visibility: hidden;
  text-transform: unset;
}
.front .acque-card-header {
  background: #fff;
  text-align: center;
  border-radius: 0 !important;
  height: 80%;
}
.front img {
  width: 50%;
}
.front h2 {
  margin-top: 15px;
  text-align: center;
  text-transform: uppercase;
  font-size: 3rem;
  font-weight: 900;
}
.back {
  background: #1c61a0;
  color: #ffffff;
  transform: rotateY( 180deg );
}
.back hr {
  color: #ffffff;
}
.front img.acque-alba {
  width: 70%;
  transform-origin: center center;
  transform: translatey(7.5%);
}
.front img.acque-gaverina {
  width: 64%;
  transform-origin: center center;
  transform: translatey(7.5%);
}
.front img.acque-sparea {
  width: 85%;
  transform-origin: center center;
  transform: translatey(5.5%);
}
.front img.acque-surgiva {
  width: 55%;
  transform-origin: center center;
  transform: translatey(-5%);
  clip-path: polygon(0 10%, 0 90%, 100% 90%, 100% 10%);
}
.front img.acque-castello {
  width: 57%;
  transform-origin: center center;
  transform: translatey(-6%);
  clip-path: polygon(0 10%, 0 90%, 100% 90%, 100% 10%);
}
.front img.acque-lissa {
   width: 84%;
   transform-origin: center center;
   transform: translatey(-4%);
}
.front img.acque-nepi {
   width: 53%;
   transform-origin: center center;
   transform: translatey(7.5%);
}
.front img.acque-dolomia {
   width: 72%;
   transform-origin: center center;
   transform: translatey(5.5%);
}
@media only screen and ( max-width: 1200px ) { /** Tablet verticale **/
  .acque-card {
    width: 480px;
    height: 480px;
  }
  .front h2 {
    font-size: 2.5rem;
  }
}
@media only screen and ( max-width: 1000px ) { /** Tablet verticale **/
  .acque-card {
    width: 380px;
    height: 380px;
  }
  .front h2 {
    font-size: 1.75rem;
  }
}
@media only screen and ( max-width: 480px ) { /** Smartphone Verticale **/
  .acque-card {
    width: 100%;
    height: 100vw;
  }
  .front h2 {
    font-size: 2rem;
  }
}