JavaScript201708/WEEK5/DAY4/4-bubble.html at master · code-brewer/JavaScript201708 · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>珠峰培训</title>
    <link rel="stylesheet" href="css/reset.min.css">
    <style>
        html, body {
            width: 100%;
            height: 100%;
            background: lightblue;
            overflow: hidden;
        }

        #outer {
            position: relative;
            margin: 20px auto;
            width: 300px;
            height: 300px;
            background: lightgreen;
        }

        #inner {
            position: absolute;
            top: 50%;
            left: 50%;
            margin: -50px 0 0 -50px;
            width: 100px;
            height: 100px;
            background: lightcoral;
        }
    </style>
</head>
<body>
<div id="outer">
    <div id="inner"></div>
</div>

<script>
    inner.onclick = function () {
        console.log('INNER');
    };

    outer.onclick = function () {
        console.log('OUTER');
    };

    document.body.onclick = function (e) {
        console.log('BODY');
        e.stopPropagation()
    };
</script>
</body>
</html>