<div id="loader">
	<div id="d1"></div>
	<div id="d2"></div>
	<div id="d3"></div>
	<div id="d4"></div>
	<div id="d5"></div>
</div>
<h4>Loader #1</h4>
body {
	background: #00cc99;
}
h4 {
  position: absolute;
  bottom: 20px;
  left: 20px;
  margin: 0;
  font-weight: 200;
  opacity: .5;
	font-family: sans-serif;
  color: #fff;
}
#loader {
  width: 100px;
  height: 40px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -20px -50px;
}
#loader div {
	width: 20px;
  height: 20px;
	background: #FFF;
  border-radius: 50%;
  position: absolute; 

}
#d1 { animation: animate 2s linear infinite;}
#d2 { animation: animate 2s linear infinite -.4s; }
#d3 {animation: animate 2s linear infinite -.8s; }
#d4 { animation: animate 2s linear infinite -1.2s; } 
#d5 { animation: animate 2s linear infinite -1.6s; }
@-webkit-keyframes animate {
  0% { left: 100px; top:0}
  80% { left: 0; top:0;}
  85% { left: 0; top: -20px; width: 20px; height: 20px;}
  90% { width: 40px; height: 15px; }
  95% { left: 100px; top: -20px; width: 20px; height: 20px;}
  100% { left: 100px; top:0; }
}
//You may also like Plugin
alsolike(
  "KvwIF", "Loader #4 - Spring",
  "uBjKn", "Loader #5: Hourglass",
  "ljuJn", "Loader #7 - Circular" 
);

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://codepen.io/fbrz/pen/9a3e4ee2ef6dfd479ad33a2c85146fc1.js