.book-bg {
  position: relative;
  width: 300px;
  height: 325px;
  margin: 10% auto;
  background: #93d7f2;
  transform-style: preserve-3d;
  perspective: 1100px;
  vertical-align: center;
  box-sizing: border-box;
  box-shadow: rgba(50, 50, 93, 0.25) 0px 50px 100px -20px, rgba(0, 0, 0, 0.3) 0px 30px 60px -30px, rgba(10, 37, 64, 0.35) 0px -2px 6px 0px inset;
  animation: upy infinite 3s 0.5s;
}

.book-bg {
}

@keyframes upy {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateX(-10px);
  }
}

.book-bg h6 {
  text-align: center;
  padding: 20px;
  margin: 10px;
  position: absolute;
  font-size: 21px;
}

.book-cover {
  position: absolute;
  width: 100%;
  height: 100%;
  background: #5fb6d9;
  transform-origin: 0 50%;
  transition: all 2000ms linear;
  box-shadow: rgba(50, 50, 93, 0.25) 0px 50px 100px -20px, rgba(0, 0, 0, 0.3) 0px 30px 60px -30px, rgba(10, 37, 64, 0.35) 0px -2px 6px 0px inset;
}

.book-cover h3 {
  margin: 100px auto;
  text-align: center;
  position: absolute;
  /*padding-left: 15%;*/
  padding-top: 15%;
  color: #fff;
}

.book-bg:hover .book-cover {
  transform: rotateY(-85deg);
  transform-style: preserve-3d;
}

.book-land {
  background: #5fb6d9;
  height: 50px;
  width: 420px;
  margin-top: -10%;
}

@media (max-width: 500px) {
  .book-land {
    background: #5fb6d9;
    height: 50px;
    width: 250px;
    margin-top: -10%;
  }
}