data/val/codepen-DjBZoj-bLJKRB/full.html

<!DOCTYPE html>
<html>
<head>
  <style>.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden; }

.circle {
  width: 40px;
  height: 40px;
  margin: 25px;
  animation: float 1s infinite cubic-bezier(0.25, 0.1, 0.24, 1.25);
  border-radius: 100%; }

.circle-1 {
  background-color: #49b8e5;
  animation-delay: 100ms; }

.circle-2 {
  background-color: #1ea7d4;
  animation-delay: 200ms; }

.circle-3 {
  background-color: #2a92d0;
  animation-delay: 300ms; }

.circle-4 {
  background-color: #3a88c8;
  animation-delay: 400ms; }

.circle-5 {
  background-color: #507cbe;
  animation-delay: 500ms; }

@keyframes float {
  0% {
    transform: translateY(0px); }
  50% {
    transform: translateY(40px); }
  100% {
    transform: translateY(0px); } }

@media (max-width: 500px) {
  .circle {
    width: 1em;
    height: 1em;
    margin: 10px; } }
</style>
</head>
<body>
  <div class="container">
 <div class="circle circle-1"></div>
 <div class="circle circle-2"></div>
 <div class="circle circle-3"></div>
 <div class="circle circle-4"></div>
 <div class="circle circle-5"></div>
</div>
  <script></script>
</body>
</html>