lovecoding
/
web0715


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            position: fixed;
            top:0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0,0,0,.5);
        }
        .box2{
            width: 200px;
            height: 200px;
            background-color: #fff;
            position: absolute;
            top: 50%;
            left: 50%;
            margin-top: -100px;
            margin-left: -100px;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="box2"></div>
    </div>
    <script>
        var oBox = document.getElementsByClassName("box")[0];
        var oBox2 = document.getElementsByClassName("box2")[0];

        oBox.onclick = function(){
            this.style.display = "none";
        }
        oBox2.onclick = function(e){
            this.innerText = "hello";
            // 他会阻止冒泡事件
            e.stopPropagation();
        }
        
    </script>
</body>
</html>