javascript,弹出窗口很多网页都实现了弹出窗口，使用方面，特别的人性化，本文就大家介绍javascript实现弹出窗口特效，具体代码如下： <!DOCTYPE html><html><head lang="en"><meta charset="UTF-8"><title>弹出窗口</title><script src="js/jquery-1.11.1.js"></script><style>*{ margin: 0; padding: 0;}div{ margin: 0 auto; /*border: 1px solid red;*/}.overBg{ width: 100%; height: 100%; background: gray; opacity: 0.5; filter: alpha(opacity=50); position: fixed; top:0; z-index: 300;}.tc-con{ width: 200px; height: 200px; padding: 30px; background: blanchedalmond; position: fixed; top: 0; z-index: 1000;}</style><script> $(function(){ $('.tc').hide(); $('.btn').click(function(){ $('.tc').show(); }) $('.tc').click(function(){ $(this).hide(); }) })</script></head><body><div class="btn">点击出现</div><div class="tc"> <div class="overBg"></div> <div class="tc-con" id="tc-con">22</div> <script> var a=document.getElementById('tc-con'); a.style.left=(document.body.clientWidth/2- a.clientWidth/2)+'px'; a.style.top=(document.documentElement.clientHeight/2- a.clientHeight/2)+'px'; </script></div><div style="height:2000px">22</div></body></html><!DOCTYPE html><html><head lang="en"><meta charset="UTF-8"><title>弹出窗口</title><script src="js/jquery-1.11.1.js"></script><style>*{ margin: 0; padding: 0;}div{ margin: 0 auto; /*border: 1px solid red;*/}.overBg{ width: 100%; height: 100%; background: gray; opacity: 0.5; filter: alpha(opacity=50); position: fixed; top:0; z-index: 300;}.tc-con{ width: 200px; height: 200px; padding: 30px; background: blanchedalmond; position: fixed; top: 0; z-index: 1000;}</style><script> $(function(){ $('.tc').hide(); $('.btn').click(function(){ $('.tc').show(); }) $('.tc').click(function(){ $(this).hide(); }) })</script></head><body><div class="btn">点击出现</div><div class="tc"> <div class="overBg"></div> <div class="tc-con" id="tc-con">22</div> <script> var a=document.getElementById('tc-con'); a.style.left=(document.body.clientWidth/2- a.clientWidth/2)+'px'; a.style.top=(document.documentElement.clientHeight/2- a.clientHeight/2)+'px'; </script></div><div style="height:2000px">22</div></body></html>效果图： 
以上就是为大家分享的javascript弹出窗口实现代码，希望对大家的学习有所帮助。
javascript,弹出窗口
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