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Blue secondary navigation bar effect code implemented by jquery_jquery

WBOY
WBOYOriginal
2016-05-16 15:43:151839browse

The example in this article describes the blue secondary navigation bar effect code implemented by jquery. Share it with everyone for your reference. The details are as follows:

This is a website navigation bar effect code. The menu can support up to two levels, which is suitable for many types of websites. If you don’t like blue, you can modify it to other colors. The overall effect is good, and it is a very simple website navigation.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/jquery-blue-2level-nav-style-codes/

The specific code is as follows: 

<!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>css+jquery打造二级横向菜单</title>
<style type="text/css" />
#droplinebar {overflow: hidden;}
.droplinebar ul{
margin: 0;
padding: 0;
float: left;
width: 100%;
font: bold 14px Arial, Helvetica, sans-serif,微软雅黑;
text-align:center;
background: #006b96 url(images/blueactive.gif) center center repeat-x;}
.droplinebar ul li{display: inline;}
.droplinebar ul li a{
float: left;
display: block;
color: white;
width: 127px;
padding:11px 2px;
text-decoration: none;}
.droplinebar ul li a:visited{color: white;}
.droplinebar ul li a:hover, .droplinebar ul li .current{
color: white;background: transparent url(images/bluedefault.gif) center center repeat-x;padding:11px 2px;}
.droplinebar ul li ul{
position: absolute;
z-index: 100;
padding: 5px 0;
top: 0;
background: #006791;
visibility: hidden;}
.droplinebar ul li ul li a{
font: bold 14px 微软雅黑,Arial, Helvetica, sans-serif;
padding:5px 0;
margin: 0;}
.droplinebar ul li ul li a:hover{
background: #024662;}
</style>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
<script type="text/javascript">
var droplinemenu={
arrowimage: {classname: 'downarrowclass', src: 'images/down.gif', leftpadding: 5},
animateduration: {over: 200, out: 100},
buildmenu:function(menuid){
 jQuery(document).ready(function($){
  var $mainmenu=$("#"+menuid+">ul")
  var $headers=$mainmenu.find("ul").parent()
  $headers.each(function(i){
   var $curobj=$(this)
   var $subul=$(this).find('ul:eq(0)')
   this._dimensions={h:$curobj.find('a:eq(0)').outerHeight()}
   this.istopheader=$curobj.parents("ul").length==1&#63; true : false
   if (!this.istopheader)
    $subul.css({left:0, top:this._dimensions.h})
   var $innerheader=$curobj.children('a').eq(0)
   $innerheader=($innerheader.children().eq(0).is('span'))&#63; $innerheader.children().eq(0) : $innerheader
   $innerheader.append(
    '<img src="'+ droplinemenu.arrowimage.src
    +'" class="' + droplinemenu.arrowimage.classname
    + '" style="border:0; padding-left: '+droplinemenu.arrowimage.leftpadding+'px" />'
   )
   $curobj.hover(
    function(e){
     var $targetul=$(this).children("ul:eq(0)")
     if ($targetul.queue().length<=1) //if 1 or less queued animations
      if (this.istopheader)
       $targetul.css({left: $mainmenu.offset().left, top: $mainmenu.offset().top+this._dimensions.h})
      if (document.all && !window.XMLHttpRequest) //detect IE6 or less, fix issue with overflow
       $mainmenu.find('ul').css({overflow: (this.istopheader)&#63; 'hidden' : 'visible'})
      $targetul.slideDown(droplinemenu.animateduration.over)
    },
    function(e){
     var $targetul=$(this).children("ul:eq(0)")
     $targetul.slideUp(droplinemenu.animateduration.out)
    }
   ) //end hover
  }) //end $headers.each()
  $mainmenu.find("ul").css({display:'none', visibility:'visible', width:$mainmenu.width()})
 }) //end document.ready
}
}</script>
<script type="text/javascript">
droplinemenu.buildmenu("mydroplinemenu")
</script>
</head>
<body>
<div id="mydroplinemenu" class="droplinebar">
<ul>
<li><a href="#" >网站首页</a></li>
<li><a href="#" >网络营销教程</a>
<ul>
 <li><a href="#">基础知识教程</a></li>
 <li><a href="#">课内实践教程</a></li>
 <li><a href="#">专项实践教程</a></li>
 <li><a href="#">毕业论文安排</a></li>
 </ul>
</li>
<li><a href="#" >Flash源码</a></li>
<li><a href="#" >Photoshop教程</a>
<ul>
 <li><a href="#">基础教程</a></li>
<li><a href="#">5步实例教程</a></li>
 <li><a href="#">文字与按钮教程</a></li>
 <li><a href="#">图片教程</a></li>
 <li><a href="#">笔刷等下载</a></li>
 <li><a href="#">源文件下载</a></li>
 <li><a href="#">字体下载</a></li>
 </ul>
</li>
<li><a href="#" >博客代码</a>
<ul>
 <li><a href="#">博客大巴模板</a></li>
 <li><a href="#">博客大巴代码</a></li>
 <li><a href="#">和讯博客代码</a></li>
　</ul>
</li>
<li><a href="#" >网店经营</a></li>
<li><a href="#" >网络营销研究</a> </li>
</ul>
</div>
</body>
</html>

I hope this article will be helpful to everyone’s jquery programming design.

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