.container {
  padding: 0;
  margin: 0;
  width: 100vw;
  height: 60vh;
  background-color: #789;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.waving {
  perspective: 1000px;
  -moz-perspective: 1000px;
}
.waving > * {
  display: inline-block;
  font-size: 5rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  transform-origin: top;
  animation: waving 1s infinite ease-in-out;
  animation-fill-mode: backwards;
}
.waving > *:nth-child(1) {
  animation-delay: 0.12s;
}
.waving > *:nth-child(2) {
  animation-delay: 0.24s;
}
.waving > *:nth-child(3) {
  animation-delay: 0.36s;
}
.waving > *:nth-child(4) {
  animation-delay: 0.48s;
}
.waving > *:nth-child(5) {
  animation-delay: 0.6s;
}
.waving > *:nth-child(6) {
  animation-delay: 0.72s;
}
.waving > *:nth-child(7) {
  animation-delay: 0.84s;
}
.waving > *:nth-child(8) {
  animation-delay: 0.96s;
}
.waving > *:nth-child(9) {
  animation-delay: 1.08s;
}
.waving > *:nth-child(10) {
  animation-delay: 1.2s;
}
.waving > *:nth-child(11) {
  animation-delay: 1.32s;
}
.waving > *:nth-child(12) {
  animation-delay: 1.44s;
}
.waving > *:nth-child(13) {
  animation-delay: 1.56s;
}
.waving > *:nth-child(14) {
  animation-delay: 1.68s;
}
.waving > *:nth-child(15) {
  animation-delay: 1.8s;
}
.waving > *:nth-child(16) {
  animation-delay: 1.92s;
}
.waving > *:nth-child(17) {
  animation-delay: 2.04s;
}
.waving > *:nth-child(18) {
  animation-delay: 2.16s;
}
.waving > *:nth-child(19) {
  animation-delay: 2.28s;
}
.waving > *:nth-child(20) {
  animation-delay: 2.4s;
}

@keyframes waving {
  0% {
    transform: rotateX(30deg) translateY(0);
    text-shadow: 0px 3px 0px #ccc, 0px 10px 10px rgba(0, 0, 0, 0.5);
  }
  50% {
    transform: rotateX(45deg) translateY(-20px);
    text-shadow: 0px 3px 0px #ccc, 0px 55px 20px rgba(0, 0, 0, 0.4);
  }
  100% {
    transform: rotateX(30deg) translateY(0);
    text-shadow: 0px 3px 0px #ccc, 0px 10px 10px rgba(0, 0, 0, 0.5);
  }
}