這篇文章主要是對div浮層,滾動條移動,位置保持不變的4種方法進行了匯總介紹，需要的朋友可以過來參考下，希望對大家有所幫助
div在頂部不變、滾動條滾動，div還是在頂部！直接上傳源碼了： 方法一： 代碼如下: <!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> <title>div浮層，滾動條移動，保持位置不變</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style type="text/css"> body{background-image:url(about:blank);background-attachment:fixed;} #float{width:344px;height:34px;border:1px solid #C0DBF8;position:absolute;top:0px;} </style> </head> <body> <div id="float" >ddd</div> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> </body> <script type="text/javascript"> var IO=document.getElementById('float'),Y=IO,H=0,IE6; IE6=window.ActiveXObject&&!window.XMLHttpRequest; while(Y){H+=Y.offsetTop;Y=Y.offsetParent}; if(IE6) IO.style.cssText="position:absolute;top:(this.fix?(document.documentElement.scrollTop-(this.javascript||"+H+")):0)"; window.onscroll=function (){ var d=document,s=Math.max(d.documentElement.scrollTop,document.body.scrollTop); if(s>H&&IO.fix||s<=H&&!IO.fix)return; if(!IE6)IO.style.position=IO.fix?"":"fixed"; IO.fix=!IO.fix; }; try{document.execCommand("BackgroundImageCache",false,true)}catch(e){}; </script> </html> 方法二： 代碼如下: <STRONG><body topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" style="overflow: hidden;"> <!-- div</STRONG>來實現<STRONG> --> <div style="width: 100%; height: 100%; overflow: scroll;"> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> </div> <div style="border: 1px red solid; width: 300px; height: 300px;margin:-150px 0 0 -150px; position: absolute; left: 50%; top: 50%;"></STRONG> 居中的層 <STRONG> </div> </body></STRONG> 方法三： 代碼如下: <body topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0" style="overflow: hidden;"> <!-- iframe來實現 --> <iframe src="http://www.jb51.net" width="100%" height="100%" frameborder="0"></iframe> <div style="border: 1px red solid; width: 300px; height: 300px;margin:-150px 0 0 -150px; position: absolute; left: 50%; top: 50%;"> 居中的層 </div> </body> 方法四：[采用css來居中] 代碼如下: <style type="text/css"> <!-- html,body {height:100%; margin:0px; font-size:12px;} .mydiv { background-color: #f9fff6; border: 1px solid #009900; text-align: center; line-height: 25px; font-size: 13px; font-weight: bold; z-index:99; width: 300px; height: 50px; left:50%;/*FF IE7*/ top:50%;/*FF IE7*/ margin-left:-150px!important;/*FF IE7 half of its width */ margin-top:-60px!important;/*FF IE7 half of its height*/ 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*/ } --> </style> <script language="javascript" type="text/javascript"> function showDiv(){ document.getElementById('popDiv').style.display='block'; } window.onload=function(){ showDiv(); } </script> <!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=gb2312" /> <title>始終在中間DIV (支持IE FF)</title> </head> <body> <div id="popDiv" class="mydiv" style="display:none;">始終在中間<br/> </div> <br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/> </body> </html>