examples/loader-7.html

<!DOCTYPE html>
<html class="no-js" lang="">
<head>
  <meta charset="utf-8">
  <meta http-equiv="x-ua-compatible" content="ie=edge">
  <title>Loader No JS Demo</title>
  <meta name="description" content="">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <style type="text/css">
  /* CSS styles */
  /* Example by brunjo at http://codepen.io/brunjo/pen/wBKmbm */

  .loading {
    position: absolute;
    top: 50%;
    left: 50%;
  }
  .loading-bar {
    display: inline-block;
    width: 4px;
    height: 18px;
    border-radius: 4px;
    animation: loading 1s ease-in-out infinite;
  }
  .loading-bar:nth-child(1) {
    background-color: #3498db;
    animation-delay: 0;
  }
  .loading-bar:nth-child(2) {
    background-color: #c0392b;
    animation-delay: 0.09s;
  }
  .loading-bar:nth-child(3) {
    background-color: #f1c40f;
    animation-delay: .18s;
  }
  .loading-bar:nth-child(4) {
    background-color: #27ae60;
    animation-delay: .27s;
  }

  @keyframes loading {
    0% {
      transform: scale(1);
    }
    20% {
      transform: scale(1, 2.2);
    }
    40% {
      transform: scale(1);
    }
  }
  </style>

</head>
<body>
  <!--[if lt IE 8]>
  <p class="browserupgrade">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p>
  <![endif]-->
  <div class="loading">
    <div class="loading-bar"></div>
    <div class="loading-bar"></div>
    <div class="loading-bar"></div>
    <div class="loading-bar"></div>
  </div>

</body>
</html>