#front {
  z-index: 1;
  position: absolute;
  background-color: #0b6570;
  width:590px;
  height: 728px;
  text-align: center;
  transition: 1s;
  transform-origin: 0;
  border: 1px solid #000;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  padding-top: 5%;
}

.open-card {
  transform: rotateY(180deg);
}

#front-title {
  max-width: 90%;
  padding-bottom: 3%;
}

#front-pic {
  max-width: 75%;
}

#inside {
  z-index: 0;
  position: absolute;
  background-color: rgb(255, 255, 255);
  width: 590px;
  height: 728px;
  text-align: center;
  border: 1px solid #000;
  margin-left: auto;
  margin-right: auto;
  left: 0;
  right: 0;
  padding-top: 5%;
}

#inside-recipient {
  color: #000;
  font-size: 12pt;
  padding: 20px 0 40px 0;
}

#inside-pic {
  width: auto;
  height: 150px;
  margin-bottom: 32px;
}

#message {
  font-size: 17pt;
  text-align: center;
  padding: 0 20px 0 20px;
}

#inside-sender {
  color: #000;
  font-size: 12pt;
  text-align: center;
  padding: 0 20px 0 20px;
}


body {
  font-family: 'Shadows Into Light Two', cursive;

  background: linear-gradient(-45deg, white, #fee4e1, #b4d3dd, #bab4dd);
  background-size: 400% 400%;
  -webkit-animation: Gradient 15s ease infinite;
 
}

@-webkit-keyframes Gradient {
  0% {
    background-position: 0% 50%
  }
  50% {
    background-position: 100% 50%
  }
  100% {
    background-position: 0% 50%
  }
}