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<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color:#E7E9EB;
}
#myDIV {
  height:300px;
  background-color:#FFFFFF;
}
#main {
  width: 400px;
  height: 150px;
  border: 1px solid #c3c3c3;
  display: flex;
}
#main div {
  width: 70px;
  height: 70px;
}
div#myRedDIV   {order: 1;}
div#myBlueDIV  {order: 2;}
div#myGreenDIV {order: 4;}
div#myPinkDIV  {order: 3;}
</style>
</head>
<body>
<h1>The order property</h1>
<div id="myDIV">
<p>Check the code. The order property specifies in which order the elments are displayed.</p>
<div id="main">
  <div style="background-color:coral;" id="myRedDIV"></div>
  <div style="background-color:lightblue;" id="myBlueDIV"></div>
  <div style="background-color:lightgreen;" id="myGreenDIV"></div>
  <div style="background-color:pink;" id="myPinkDIV"></div>
</div>
</div>
</body>
</html>