.box {
  display: ;
  width: 100%;
  background-color: #f7f5f5;
  border-radius: 12px;
  box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.3);
}

.floatbox {
  animation-name: floating;
  animation-duration: 5s;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
}

@keyframes floating {
  0% {
    transform: translateY(0)
  }
  50% {
    transform: translateY(-5px);
    box-shadow: 0px 12px 22px rgba(0, 0, 0, 0.7);
  }
}