遮罩层的小demo，拿来即用

    
    

    
        *{padding: 0; margin: 0}
        /*遮罩层*/
        .box{
            position: fixed;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.2);
            display: none;
        }
        /*弹出层*/
        .box1{
            width: 500px;
            height: 500px;
            position: fixed;left: 50%; top: 25%;
            background: red;
            margin-left: -250px;
            border: 1px solid #000000;
        }
        .box2{
            width: 500px;
            height: 500px;
            position: fixed;left: 50%; top: 25%;
            background: green;
            margin-left: -250px;
            border: 1px solid #000000;
        }
    




    

        关闭
    


    

        关闭
    

显示
显示