data/train/codepen-AKOQrA-azvPQJ/full.html

<!DOCTYPE html>
<html>
<head>
  <style>.loading {
  margin-top: 50px;
  margin-left: 50px;
  font-size: 50px;
  font-family: sans-serif;
}
.ball {
  display: inline-block;
  height: 50px;
  width: 50px;
  background-color: #e74c3c;
  border-radius: 50%;
  box-shadow:inset 6px -10px 50px -20px #000;
  animation: loading 1s infinite;
}


@keyframes loading {
  0%, 100% {
    transform: translateY(0px);
    animation-timing-function: ease-out;
  }
  50% {
    transform: translateY(-30px);
    animation-timing-function: ease-in;
  }
}</style>
</head>
<body>
  <div class="loading">
  <div class="ball"></div>
  Wait...
</div>
  <script></script>
</body>
</html>