<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
#div1{
width: 300px;
height: 200px;
background-color: #84a42b;
}
#div2{
height: 100px;
width: 100px;
background-color: rebeccapurple;
}
</style>
</head>
<body>
<div id="div1" onclick="alert('div1')">
<div id="div2" onclick="func1(event)"></div>
</div>
<script>
function func1(e) {
alert('div2');
e.stopPropagation();
}
</script>
</body>
</html>