<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#parent{
display: flex;
flex-wrap: wrap;
width: 100%;
border: 1px solid #8c8c8c;
}
#parent > div{
border:1px solid #267326;
text-align: center;
line-height: 4;
width: 70px;
height:70px;
}
</style>
</head>
<body>
<h1>CSS order Property</h1>
<div id="parent">
<div>Div 1</div>
<div>Div 2</div>
<div>Div 3</div>
<div>Div 4</div>
</div>
<button onclick="myFunction()">Click Me</button>
<script>
var x = document.getElementById("parent").firstElementChild;
function myFunction(){
x.style.order = "1";
}
</script>
<p><strong>Note</strong>: Click on the button to set the order value of 1 to the first child (Div 1).</p> </body>
</html>