js实现带圆角的两级导航菜单效果代码

前端技术 2023/09/05 JavaScript

本文实例讲述了js实现带圆角的两级导航菜单效果代码。分享给大家供大家参考。具体如下：

这是一款使用JS做的圆角菜单，支持两级菜单显示，本人比较喜欢的风格，修改使用方便，新手也能上手快。使用有几张圆角图片来修饰了菜单，喜欢的朋友可以下载代码留作收藏使用。真心不错的蓝色导航条代码。

运行效果截图如下：

在线演示地址如下：

http://demo.phpstudy.net/js/2015/js-cicle-nav-menu-style-codes/

具体代码如下：

<!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>圆角蓝色横向二级菜单代码，鼠标经过显示子菜单</title>
<script> 
function MM_reloadPage(init) {
 if (init==true) with (navigator) {if ((appName==\"Netscape\")&&(parseInt(appVersion)==4)) {
 document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
 else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
function MM_findObj(n, d) { //v4.01
 var p,i,x; if(!d) d=document; if((p=n.indexOf(\"?\"))>0&&parent.frames.length) {
 d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
 if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
 for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
 if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_showHideLayers() { //v6.0
 var i,p,v,obj,args=MM_showHideLayers.arguments;
 for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
 if (obj.style) { obj=obj.style; v=(v==\'show\')?\'visible\':(v==\'hide\')?\'hidden\':v; }
 obj.visibility=v; }
}
</script> 
<style type=\"text/css\">
body {font-family:\\5B8B\\4F53,Arial Narrow,arial,serif;background:#ffffff;font-size:12px;}
body,div,dl,dt,dd,ul,ol,li,pre,form,fieldset,input,textarea,blockquote,emBED{padding:0; margin:0;}
li{list-style-type:none;}
a{text-decoration:none;color:#20537A;}
a:hover{text-decoration:underline;}
.topmenu{width:980px;height:42px; margin:0 auto;position: relative;left:0px; top:0px;background:url(\'images/nav_li_bg.gif\') repeat-x right center;}
.topmenu .nav_content{padding-left:25px;background:url(\'images/nav_li_left.gif\') no-repeat;float:left;}
.topmenu .nav_content li{width:126px;height:42px;float:left;line-height:42px;background:url(\'images/nav_li_line.gif\') no-repeat right;text-align:center;font-weight:bold;}
.topmenu .nav_content li a{color:#fff;width:126px;height:42px;display:block;}
.topmenu .nav_content li.current a{width:126px;height:42px;line-height:42px;display:block;color:#fff;}
.topmenu .nav_content li.current a:hover{line-height:42px;}
.topmenu .nav_content li a:hover{line-height:42px;text-decoration:none;background:url(\'images/nav_li_hover.gif\') no-repeat;color:#000;}
.topmenu .nav_content li.end{background: none;}
.topmenu .nav_content li.right{padding-left:47px;width:26px;background:url(\'images/nav_li_right.gif\') no-repeat right top;height:42px;}
.submenu{visibility: hidden;position:absolute;top:42px;left:0;background:url(\'images/sub_li_bg.gif\') repeat-x right top;}
.submenu .subnav{padding-left:33px;background:url(\'images/sub_li_left.gif\') no-repeat;float:left;}
.submenu .subnav li{height40px;float:left;background:url(\'images/arrow.gif\') no-repeat left 15px;}
.submenu .subnav li a{color:#333;display:block;padding:0 12px;line-height:40px; text-decoration:none;}
.submenu .subnav li a:hover{color:#0a4aaa;text-decoration:none;}
.submenu .subnav li.subright{width:33px;background:url(\'images/sub_li_right.gif\') no-repeat right top;height:40px;}
#Layer1{left:30px;}
#Layer2{left:80px;}
#Layer3{left:280px;}
#Layer4{left:400px;}
#Layer5{left:auto;right:80px;}
</style>
</head>
<body>
<div style=\"height:70px;\"></div>
<div class=\"topmenu\">
<div class=\"nav_content\">
<ul>
<li><a href=\"#\">首　页</a></li>
<li><a href=\"#\" onMouseOver=\"MM_showHideLayers(\'Layer1\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer1\',\'\',\'hide\')\">网页特效</a></li>
<li><a href=\"#\" onMouseOver=\"MM_showHideLayers(\'Layer2\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer2\',\'\',\'hide\')\">电子商务</a></li>
<li><a href=\"#\" onMouseOver=\"MM_showHideLayers(\'Layer3\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer3\',\'\',\'hide\')\">导航条</a></li>
<li><a href=\"#\" onMouseOver=\"MM_showHideLayers(\'Layer4\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer4\',\'\',\'hide\')\">网络广告</a></li>
<li><a href=\"#\" onMouseOver=\"MM_showHideLayers(\'Layer5\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer5\',\'\',\'hide\')\">搜索引擎</a></li>
<li><a href=\"#\" >关于我们</a></li>
<li class=\"right\"></li>
</ul>
</div>
<div id=\"Layer1\" class=\"submenu\" onMouseOver=\"MM_showHideLayers(\'Layer1\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer1\',\'\',\'hide\')\"> 
 <div class=\"subnav\">
 <ul>
 <li><a href=\"\">源码下载</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li><a href=\"\">营销外包</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li class=\"subright\"></li>
 </ul>
</div>
</div>
<div id=\"Layer2\" class=\"submenu\" onMouseOver=\"MM_showHideLayers(\'Layer2\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer2\',\'\',\'hide\')\"> 
 <div class=\"subnav\">
 <ul>
 <li><a href=\"\">编程书籍</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li><a href=\"\">商务人才</a></li>
  <li><a href=\"\">网络外包</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li class=\"subright\"></li>
 </ul>
</div>
</div>
<div id=\"Layer3\" class=\"submenu\" onMouseOver=\"MM_showHideLayers(\'Layer3\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer3\',\'\',\'hide\')\"> 
 <div class=\"subnav\">
 <ul>
 <li><a href=\"\">论坛社区</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li><a href=\"\">电子商务人才</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li class=\"subright\"></li>
 </ul>
</div>
</div>
<div id=\"Layer4\" class=\"submenu\" onMouseOver=\"MM_showHideLayers(\'Layer4\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer4\',\'\',\'hide\')\"> 
 <div class=\"subnav\">
 <ul>
 <li><a href=\"\">教程文章</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li><a href=\"\">网站分类</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li class=\"subright\"></li>
 </ul>
</div>
</div>
<div id=\"Layer5\" class=\"submenu\" onMouseOver=\"MM_showHideLayers(\'Layer5\',\'\',\'show\')\" onMouseOut=\"MM_showHideLayers(\'Layer5\',\'\',\'hide\')\"> 
 <div class=\"subnav\">
 <ul>
 <li><a href=\"\">最新更新</a></li>
  <li><a href=\"\">导航条代码</a></li>
  <li><a href=\"\">分类信息网</a></li>
  <li><a href=\"\">电子商务</a></li>
  <li class=\"subright\"></li>
 </ul>
</div>
</div>
</div>
</body>
</html>

希望本文所述对大家的javascript程序设计有所帮助。

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