Run Example

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<style> 
div {
  margin: 20px;
  border: 1px solid black;
  outline: 5px solid blue;
  outline-offset: 20px;
} 
</style>
</head>
<body>
<h1>The outline-offset Property</h1>

<div>This div has a 5 pixels solid blue outline 20 pixels outside the border edge.</div>

</body>
</html>
Result: