.wave {
  animation-name: wave-animation;
  animation-duration: 3s;
  animation-iteration-count: 1;
  transform-origin: 70% 70%;
  display: inline-block;
}

@keyframes wave-animation {
  0% {
    transform: rotate(0deg);
  }
  5% {
    transform: rotate(-5deg);
  }
  10% {
    transform: rotate(10deg);
  }
  20% {
    transform: rotate(-10deg);
  }
  30% {
    transform: rotate(12deg);
  }
  40% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(12deg);
  }
  60% {
    transform: rotate(-10deg);
  }
  70% {
    transform: rotate(12deg);
  }
  80% {
    transform: rotate(-10deg);
  }
  90% {
    transform: rotate(9deg);
  }
  100% {
    transform: rotate(0deg);
  }
}