本文實例講述了jQuery實現的登錄浮動框效果代碼。分享給大家供大家參考。具體如下：
這是一款jQuery登錄浮動框代碼，點擊登錄按鈕后可看到彈出了一個浮動層，右上角帶有關閉按鈕，本浮動層不支持拖動，在網上經常會見到的一種浮動層格式。
運行效果截圖如下：
在線演示地址如下：
http://demo.VeVB.COm/js/2015/jquery-float-login-dlg-style-demo/
具體代碼如下：
<!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><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>jQuery登錄浮動框代碼</title><style type="text/css">body{ margin:0px; padding:0px; background-color:#f0f0f0; font-family:Arial, Helvetica, sans-serif;}a{ text-decoration:none;}.top{ width:760px; height:30px; border-bottom:1px solid #dbdbdb; margin:0px auto;}.logo{ width:300px; height:30px; line-height:30px; float:left; font-size:14px; margin:0px 5px;}.logo a{ color:#666666;}.denglu{ height:30px; line-height:30px; float:right; font-size:14px;}.denglu a{ color:#666666; margin:0px 10px;}.clear{ display:block; height:0px; line-height:0px; font-size:0px; clear:both;}.fd{ width:100%; height:auto; position:absolute; top:150px; left:0px; z-index:1; display:none;}.fd_box{ width:320px; height:auto; margin:0px auto; position:relative; }.tm_box{ width:300px; height:200px; padding:10px; background-color:#FFFFFF; -webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px; FILTER: alpha(opacity=50); opacity: 0.5; -moz-opacity: 0.5; position:absolute; top:0px; left:0px; z-index:2;}.denglu_box{ width:280px; height:180px; padding:10px; background-color:#FFFFFF; -webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px; position:absolute; top:10px; left:10px; z-index:3; font-family:"宋體";}.denglu_box h1{ width:270px; height:30px; line-height:30px; font-size:14px; margin:0px; padding:0px 5px; font-weight:100; color:#666666; border-bottom:1px solid #009999;}.denglu_box span{ color:#666666; display:block; margin:10px 0px; padding:0px 5px;}.guanbi{ width:14px; height:13px; background-image:url(images/close.gif); background-repeat:no-repeat; position:absolute; top:25px; right:25px; z-index:4; cursor: pointer;}.box{ width:760px; height:auto; margin:0px auto; border-top:1px solid #f9f9f9;}.box img{ margin:50px auto; display:block; border:0px;}</style><script type="text/javascript" src="jquery-1.6.2.min.js"></script><script type="text/javascript">$(document).ready(function(){ $("#mj").click( function(){ $(".fd").show(); return false; }); $(".guanbi").click( function(){ $(".fd").hide(); });})</script></head><body><div class="top"><div class="logo"><a href="#">MJBlog</a></div><div class="denglu"><a href="denglu.html" id="mj">登錄</a><a href="#">注冊</a></div><div class="clear"></div></div><div class="box"><a href="#"><img src="images/wall3.jpg" /></a></div><div class="fd"><div class="fd_box"><div class="tm_box"></div><div class="denglu_box"><h1>用戶登錄</h1><span>用戶名：<input name="" type="text" /></span><span>密 碼：<input name="" type="text" /></span></div><div class="guanbi"></div></div></div></body></html>希望本文所述對大家的jQuery程序設計有所幫助。
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