弹出层 --- 遮罩效果的实现. 收起来, 以备不时之需!
html 代码片段
- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <title>Mask</title>
- <script src="//cdn.bootCSS.com/jquery/1.11.3/jquery.min.js"></script>
- <style>
- /* box */
- .box{position:absolute;width:600px;left:50%;height:auto;z-index:100;background-color:#fff;border:1px #ddd solid;padding:1px;}
- .box h2{height:25px;font-size:14px;background-color:#aaa;position:relative;padding-left:10px;line-height:25px;color:#fff;}
- .box h2 a{position:absolute;right:5px;font-size:12px;color:#fff;}
- .box .list{padding:10px;}
- .box .list li{height:24px;line-height:24px;}
- .box .list li span{margin:0 5px 0 0;font-family:"宋体";font-size:12px;font-weight:400;color:#ddd;}
- .showbtn {font:bold 24px '微软雅黑';}
- #bg{background-color:#000;position:absolute;z-index:99;left:0;top:0;display:none;width:100%;height:100%;opacity:0.5;filter: alpha(opacity=50);-moz-opacity: 0.5;}
- </style>
- </head>
- <body>
- <p class="showbtn"><a href="javascript:void(0);"> 显示遮罩层 </a></p>
- <div id="bg"></div>
- <div class="box" style="display:none">
- <h2>jQuery 学习交流 < a href="#" class="close"> 关闭 </a></h2>
- <div class="list">
- <ul>
- <li > 我是稀饭 </li>
- <li > 我是稀饭 </li>
- <li > 我是稀饭 </li>
- </ul>
- </div>
- </div>
- <script>
- $(function () {
- $(".showbtn").click(function () {
- $("#bg").css({
- display: "block", height: $(document).height()
- });
- var $box = $('.box');
- $box.css({
- // 设置弹出层距离左边的位置
- left: ($("body").width() - $box.width()) / 2 - 20 + "px",
- // 设置弹出层距离上面的位置
- top: ($(window).height() - $box.height()) / 2 + $(window).scrollTop() + "px",
- display: "block"
- });
- });
- // 点击关闭按钮的时候, 遮罩层关闭
- $(".close").click(function () {
- $("#bg,.box").css("display", "none");
- });
- });
- </script>
- </body>
- </html>
来源: http://www.qdfuns.com/article/19393/1ba8c5174daee3f1e2373ededa2b1dd5.html