<!DOCTYPE html>
<html lang="en-US">
<body>
<h1>CSS margin Property</h1>
<p>This is a paragraph.</p>
<div style=" border: 1px solid black;">This is a div</div>
<p>This is a paragraph.</p>
<button onclick="myFunction()">Click Me</button>
<script>
var x = document.getElementsByTagName("div")[0];
function myFunction(){
x.style.margin = "50px";
}
</script>
<p><strong>Note</strong>: click on the button to apply css 'margin' property.</p> </body>
</html>