Posted in Javascript onFebruary 03, 2017
本文实例讲述了jQuery实现的浮动层div浏览器居中显示效果。分享给大家供大家参考,具体如下:
1.在页面的head中引入jQuery
<script type="text/javascript" language="javascript" src="jquery-1.7.2.min.js"></script>
2.在页面的head中加入浮动层和遮罩层的样式
<style> #previewDiv{z-index: 9999;position:absolute;display:none;background:#fff;border-top:5px solid #999;border-bottom:7px solid #999;border-left:5px solid #999;border-right:7px solid #999;} .mask {color:#C7EDCC;background-color:#999;position:absolute;top:0px;left:0px;width:100%;height:3000px;opacity: 0.6;filter: "alpha(opacity=60)";filter: alpha(Opacity=60);} </style>
3.在页面的底部加上浮动的div
<div id="previewDiv"> <table id ="head"> <tr><td>短消息预览</td></tr> </table> <table align="center"> <tr><td> <div class="zhnx_neirong"> <h3>您收到了来自三水点靠木的回复</h3> <p class="duanluo"> 内容:这是浮动层居中的实例</span></p> </div> <div class="zhnx_huifu"><p><a href="javascript:open('https://3water.com/');">查看三水点靠木</a></p></div> </td></tr> </table> <table align="center"> <tr><td><div><input type="button" value=" 关 闭 " onclick="hide();"/></div></td></tr> </table> </div>
4.添加显示和隐藏的js函数
function show(){ //添加并显示遮罩层 $("<div id='mask'></div>").addClass("mask").click(function() {}) .appendTo("body").fadeIn(0); document.getElementById("mask").style.display = "block"; var windowWidth = document.documentElement.clientWidth; var windowHeight = document.documentElement.clientHeight; var popupHeight = $("#previewDiv").height(); var popupWidth = $("#previewDiv").width(); $("#previewDiv").css({ "position": "absolute", "top": (windowHeight-popupHeight)/2+$(document).scrollTop(), "left": (windowWidth-popupWidth)/2 }); $("#previewDiv").show(); } function hide(){ $("#mask").remove(); $("#previewDiv").hide(); }
完整实例代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test</title> <script type="text/javascript" language="javascript" src="jquery-1.7.2.min.js"></script> </head> <body> <style> #previewDiv{z-index: 9999;position:absolute;display:none;background:#fff;border-top:5px solid #999;border-bottom:7px solid #999;border-left:5px solid #999;border-right:7px solid #999;} .mask {color:#C7EDCC;background-color:#999;position:absolute;top:0px;left:0px;width:100%;height:3000px;opacity: 0.6;filter: "alpha(opacity=60)";filter: alpha(Opacity=60);} </style> <div id="previewDiv"> <table id ="head"> <tr><td>短消息预览</td></tr> </table> <table align="center"> <tr><td> <div class="zhnx_neirong"> <h3>您收到了来自三水点靠木的回复</h3> <p class="duanluo"> 内容:这是浮动层居中的实例</span></p> </div> <div class="zhnx_huifu"><p><a href="javascript:open('https://3water.com/');">查看三水点靠木</a></p></div> </td></tr> </table> <table align="center"> <tr><td><div><input type="button" value=" 关 闭 " onclick="hide();"/></div></td></tr> </table> </div> <script type="text/javascript" language="javascript" > function show(){ //添加并显示遮罩层 $("<div id='mask'></div>").addClass("mask").click(function() {}) .appendTo("body").fadeIn(0); document.getElementById("mask").style.display = "block"; var windowWidth = document.documentElement.clientWidth; var windowHeight = document.documentElement.clientHeight; var popupHeight = $("#previewDiv").height(); var popupWidth = $("#previewDiv").width(); $("#previewDiv").css({ "position": "absolute", "top": (windowHeight-popupHeight)/2+$(document).scrollTop(), "left": (windowWidth-popupWidth)/2 }); $("#previewDiv").show(); } function hide(){ $("#mask").remove(); $("#previewDiv").hide(); } show(); </script> </body> </html>
运行效果图如下:
希望本文所述对大家jQuery程序设计有所帮助。
jQuery实现的浮动层div浏览器居中显示效果
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hfhwfw声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
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