<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Event Propagation Example</title>
<style>
.container {
width: 200px;
height: 200px;
background-color: lightblue;
padding: 20px;
}
.box {
width: 100px;
height: 100px;
background-color: pink;
margin-top: 20px;
cursor: pointer;
}
</style>
</head>
<body>
<div class="container" onclick="alert('You clicked the container!');">
Click the pink box to see event propagation:
<div class="box" onclick="event.stopPropagation(); alert('You clicked the box without bubbling!');"></div>
</div>
</body>
</html>