<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
    <div id="div">Well, click on me!</div>
    
</body>
</html>
#div {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 180px;
  border: 2px dashed gray;
  padding: 20px 40px;
  text-align: center;
  transform: translate(-50%, -50%);
}
View Compiled 
document.addEventListener('click', () => alert('document'));
div.addEventListener('click', () => alert('div'));

External CSS

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External JavaScript

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