javascript 弹出层始终居中兼容所有浏览器（浏览器缩小自动居中）

来源：互联网发布：excel怎么做数据筛选编辑：程序博客网时间：2024/05/22 04:26
<!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>始终居中的弹出层</title><style type="text/css"><!--html,body {height:100%; margin:0px; font-size:12px;}.mydiv {background-color: #FFCC66;border: 1px solid #f00;text-align: center;line-height: 40px;font-size: 12px;font-weight: bold;z-index:999;width: 300px;height: 120px;left:50%;top:50%;margin-left:-150px!important;/*FF IE7 该值为本身宽的一半 */margin-top:-60px!important;/*FF IE7 该值为本身高的一半*/margin-top:0px;position:fixed!important;/* FF IE7*/position:absolute;/*IE6*/_top:       expression(eval(document.compatMode &&document.compatMode=='CSS1Compat') ?documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2);/*IE5 IE5.5*/}.bg,.popIframe {background-color: #666; display:none;width: 100%;height: 100%;left:0;top:0;/*FF IE7*/filter:alpha(opacity=50);/*IE*/opacity:0.5;/*FF*/z-index:1;position:fixed!important;/*FF IE7*/position:absolute;/*IE6*/_top:       expression(eval(document.compatMode &&document.compatMode=='CSS1Compat') ?documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2);}.popIframe {filter:alpha(opacity=0);/*IE*/opacity:0;/*FF*/}--></style><script language="javascript" type="text/javascript">function showDiv(){document.getElementById('popDiv').style.display='block';document.getElementById('popIframe').style.display='block';document.getElementById('bg').style.display='block';}function closeDiv(){document.getElementById('popDiv').style.display='none';document.getElementById('bg').style.display='none';document.getElementById('popIframe').style.display='none';}</script></head><body><a href="javascript:showDiv()">点击这里弹出层</a><!--透明背景--><div id="bg" class="bg" style="display:none;"></div><iframe id='popIframe' class='popIframe' frameborder='0' ></iframe><div id="popDiv" class="mydiv" style="display:none;"><p>我是弹出层哦我是弹出层哦</p><a href="javascript:closeDiv()">关闭窗口</a></div></body></html>
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