大气清新的滑动菜单(CSS+JS)_菜单导航特效

一款比较大气清新的滑动导航菜单，CSS和JavaScript配合完成，鼠标放到一级菜单上，会滑出二级的菜单，兼容性也不错，适合大多数网站使用，用到两张背景图片，请拷贝图片地址下载图片。

<!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" mrc="text/html; charset=gb2312" />
<title>滑动导航菜单</title>
<style>
body {margin:25px; font:12px Verdana, Arial, Helvetica}
* {padding:0; margin:0}
.dropdown {float:left; padding-right:5px}
.dropdown dt {width:188px; border:2px solid #9ac1c9; padding:8px; font-weight:bold; cursor:pointer; background:url(http://p1.mb5u.com/texiao/0/2010052223053878.gif)}
.dropdown dt:hover {background:url(http://p1.mb5u.com/texiao/0/2010052223053879.gif)}
.dropdown dd {position:absolute; overflow:hidden; width:208px; display:none; background:#fff; z-index:200; opacity:0}
.dropdown ul {width:204px; border:2px solid #9ac1c9; list-style:none; border-top:none}
.dropdown li {display:inline}
.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; padding:5px; color:#333; text-decoration:none; background:#eaf0f2; width:194px}
.dropdown a:hover {background:#d9e1e4; color:#000}
.dropdown .underline {border-bottom:1px solid #b9d6dc}
</style>
<script type="text/javascript">
var DDSPEED = 10;
var DDTIMER = 15;
function ddMenu(id,d){
  var h = document.getElementById(id + '-ddheader');
  var c = document.getElementById(id + '-ddmrc');
  clearInterval(c.timer);
  if(d == 1){
    clearTimeout(h.timer);
    if(c.maxh && c.maxh <= c.offsetHeight){return}
    else if(!c.maxh){
      c.style.display = 'block';
      c.style.height = 'auto';
      c.maxh = c.offsetHeight;
      c.style.height = '0px';
    }
    c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
  }else{
    h.timer = setTimeout(function(){ddCollapse(c)},50);
  }
}

function ddCollapse(c){
  c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

<dl class="dropdown">
  <dt id="one-ddheader" onmouseover="ddMenu('one',1)" onmouseout="ddMenu('one',-1)">源码下载</dt>
  <dd id="one-ddmrc" onmouseover="cancelHide('one')" onmouseout="ddMenu('one',-1)">
    <ul>
      <li><a href="#" class="underline">最新源码</a></li>
      <li><a href="#" class="underline">下载排行</a></li>
      <li><a href="#" class="underline">脚本资源</a></li>
      <li><a href="#">Ajax实例</a></li>
    </ul>
  </dd>
</dl>
<dl class="dropdown">
  <dt id="two-ddheader" onmouseover="ddMenu('two',1)" onmouseout="ddMenu('two',-1)">网页殊效</dt>
  <dd id="two-ddmrc" onmouseover="cancelHide('two')" onmouseout="ddMenu('two',-1)">
    <ul>
      <li><a href="#" class="underline">菜单导航</a></li>
      <li><a href="#" class="underline">层和布局</a></li>
      <li><a href="#" class="underline">图片殊效</a></li>
    </ul>
  </dd>
</dl>
</body>
</html>

所属频道：菜单导航特效/更新时间：2012-11-03

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