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/* Spinner 6 starts here */
.spinner6 {
  background: #4DB6AC;
  border-radius: 50%;
  height: 1em;
  margin: .1em;
  width: 1em;
}

.p1 {
  animation: fall 1s linear .3s infinite;
}

.p2 {
  animation: fall 1s linear .2s infinite;
}

.p3 {
  animation: fall 1s linear .1s infinite;
}

.p4 {
  animation: fall 1s linear infinite;
}

@keyframes fall {
  0% {
    transform: translateY(-15px);
  }
  25%, 75% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-15px);
  }
}
/* Spinner 6 ends here */

  <div class="canvas canvas6">
    <div class="spinner6 p1"></div>
    <div class="spinner6 p2"></div>
    <div class="spinner6 p3"></div>
    <div class="spinner6 p4"></div>
  </div>