前端页面中点击一个按钮弹出模态框的实现

╰半橙微兮° 2021-10-13 02:53 740阅读 0赞

效果图：

点击按钮前的网页样子：

> ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3RqaDYyNQ_size_16_color_FFFFFF_t_70][]

点击按钮后的网页样子：

> ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3RqaDYyNQ_size_16_color_FFFFFF_t_70 1][]

HTML代码：

<!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
    	<title>模态框</title>
    	<link rel="stylesheet" type="text/css" href="modalBox.css">
    </head>
    <body>
        
        <button id="triggerBtn">模态框</button>
        
        <div id="myModal" class="modal">
            <div class="modal-content">
                <div class="modal-header">
                    <h2>头部</h2>
                    <span id="closeBtn" class="close">×</span>
                </div>
                <div class="modal-body">
                    <p>这是一个模态框！</p>
                    <p>喜欢就点个赞吧！</p>
                </div>
                <div class="modal-footer">
                    <h3>尾部</h3>
                </div>
            </div>
        </div>
    <script type="text/javascript" src="modalBox.js"></script>
    </body>
    </html>

CSS代码：

/*模态框*/
    .modal {
        display: none; /* 默认隐藏 */
        position: fixed; /* 根据浏览器定位 */
        z-index: 1; /* 放在顶部 */
        left: 0;
        top: 0;
        width: 100%; /* 全宽 */
        height: 100%; /* 全高 */
        overflow: auto; /* 允许滚动 */
        background-color: rgba(0,0,0,0.4); /* 背景色 */
    }
    /*模态框内容*/
    .modal-content {
        display: flex; /*采用flexbox布局*/
        flex-direction: column; /*垂直排列*/
        position: relative;
        background-color: #fefefe;
        margin: 15% auto; /*距顶部15% 水平居中*/
        padding: 20px;
        border: 1px solid #888;
        width: 80%;
        animation: topDown 0.4s; /*自定义动画，从模态框内容上到下出现*/
    }
    @keyframes topDown {
        from {top: -300px; opacity: 0}
        to {top: 0; opacity: 1}
    }
    /*模态框头部*/
    .modal-header {
        display: flex; /*采用flexbox布局*/
        flex-direction: row; /*水平布局*/
        align-items: center; /*内容垂直居中*/
        justify-content: space-between; 
    }
    /*关闭X 样式*/
    .close {
        color: #aaa;
        float: right;
        font-size: 28px;
        font-weight: bold;
    }
    .close:hover {
        color: black;
        text-decoration: none;
        cursor: pointer;
    }

JS代码：

参考链接：[点击按钮弹出模态框实现][Link 1]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3RqaDYyNQ_size_16_color_FFFFFF_t_70]: /images/20211013/4b66fe76cb0141cfbcf4177092184ed1.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3RqaDYyNQ_size_16_color_FFFFFF_t_70 1]: /images/20211013/e5a37aede6a440aa95337e810740ec56.png
[Link 1]: https://blog.csdn.net/qq_20565303/article/details/78734592