Vertical concise folding menu effect code implemented by JS CSS

Vertical concise folding menu effect code implemented by JS CSS_javascript skills

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Release： 2016-05-16 15:35:44

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The example in this article describes the vertical concise folding menu effect code implemented by JS CSS. Share it with everyone for your reference, the details are as follows:

This is a JS CSS vertical and concise folding menu, which supports three-level classification and is red vertical type. I personally feel it is very good. I hope everyone likes it.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-css-simple-zd-menu-demo/

The specific code is as follows:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml2/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>CSS+Js竖向简洁的折叠菜单</title>
<style>
#outer {width:504px; height:510px; position:relative; background:url(images/red_frog.jpg) no-repeat 0px 160px;}
#outer #content {clear:left; position:absolute; left:230px; top:10px; width:250px; z-index:10;}
#menu {list-style-type:none; padding:0; margin:0; width:125px; position:absolute; top:70px; left:0; border:1px solid #fff; border-width:0 1px 1px; z-index:100;}
#menu ul {list-style-type:none; padding:0; margin:0; width:125px;}
#menu li {float:left; background:#657; position:relative; border-top:1px solid #fff;}
#menu li.sub {background:#d30;}
#menu li, #menu li a {display:block; color:#fff; font-family:arial, sans-serif; font-size:11px; line-height:24px; width:125px; text-decoration:none; cursor:pointer; font-weight:bold; text-indent:5px;}
#menu ul,
#menu li.click ul ul,
#menu li.click ul li.hover ul ul {display:none;}
#menu li.hover {color:#ff0; z-index:500;}
#menu li.click {color:#ff0;}
#menu li.click ul {display:block;}
#menu li.click ul li.hover ul, 
#menu li.click ul li.hover ul li.hover ul {display:block; position:absolute; left:110px; top:-1px; border:1px solid #fff; border-width:0 1px 1px;}
#menu li.click ul li.fly {background: #657 url(images/frog_arrow.gif) no-repeat top right;}
#menu li.click ul li.hover {background:#98a;}
#menu li.click ul li.hover ul li {background:#c60;}
#menu li.click ul li.hover ul li.hover ul li {background:#780; z-index:500;}
#menu li.click ul li.hover ul li.fly {background: #c60 url(images/frog_arrow.gif) no-repeat top right;}
#menu li.click ul li.hover ul li.hover {z-index:500; background:#fa4;}
#menu li.click ul li.hover ul li.hover a {color:#000;}
#menu li.click ul li.hover ul li.hover ul li.hover {background:#aa0;}
#menu li.click ul li.hover ul li.hover ul li.hover a {color:#fff;}
#outer img {display:block; float:right;}
#outer p {margin:0px; padding:17px 0 0 0; color:#000; font-size:12px; font-family:arial, sans-serif; text-align:justify;}
</style>
<script type="text/javascript">
clickMenu = function(menu) {
  var getEls = document.getElementById(menu).getElementsByTagName("LI");
  var getAgn = getEls;
  for (var i=0; i<getEls.length; i++) {
      getEls[i].onclick=function() {
        for (var x=0; x<getAgn.length; x++) {
        getAgn[x].className=getAgn[x].className.replace("unclick", "");
        getAgn[x].className=getAgn[x].className.replace("click", "unclick");
        }
      if ((this.className.indexOf('unclick'))!=-1) {
        this.className=this.className.replace("unclick", "");;
        }
        else {
        this.className+=" click";
        }
      }
      getEls[i].onmouseover=function() {
        this.className+=" hover";
      }
      getEls[i].onmouseout=function() {
        this.className=this.className.replace("hover", "");
      }
    }
  }
</script>
</head>
<body onload="clickMenu('menu')">
<div id="outer">
<ul id="menu">
  <li class="sub">Types
    <ul>
      <li><a href="#nogo">Indian</a></li>
      <li><a href="#nogo">韩国</a></li>
      <li class="fly"><a href="#nogo">美国</a>
        <ul>
          <li><a href="#nogo">朝鲜</a></li>
          <li class="fly"><a href="#nogo">南朝鲜</a>
            <ul>
              <li><a href="#nogo">西大街</a></li>
              <li><a href="#nogo">东大街</a></li>
            </ul>
          </li>
        </ul>
      </li>
      <li><a href="#nogo">日本语</a></li>
      <li><a href="#nogo">简体中文</a></li>
    </ul>
  </li>
  <li class="sub">地区分布
    <ul>
      <li class="fly"><a href="#nogo">北京</a>
        <ul>
          <li><a href="#nogo">Hemiphractus</a></li>
          <li><a href="#nogo">Stefania</a></li>
        </ul>
      </li>
      <li class="fly"><a href="#nogo">河南</a>
        <ul>
          <li><a href="#nogo">Acris</a></li>
          <li><a href="#nogo">Anotheca</a></li>
          <li><a href="#nogo">Trachycephalus</a></li>
        </ul>
      </li>
      <li class="fly"><a href="#nogo9">武汉</a>
        <ul>
          <li><a href="#nogo">Boophis</a></li>
          <li><a href="#nogo">Callixalus</a></li>
          <li><a href="#nogo">Chiromantis</a></li>
        </ul>
      </li>
    </ul>
  </li>
  <li class="sub">References
    <ul>
      <li><a href="#">Wikipedia</a></li>
      <li><a href="#nogo11">Encyclopedia</a></li>
    </ul>
  </li>
  <li class="sub">链接
    <ul>
      <li><a href="#nogo">脚本下载</a></li>
      <li><a href="#nogo">百度搜索</a></li>
    </ul>
  </li>
</ul>
</div>
</body>
</html>

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I hope this article will be helpful to everyone in JavaScript programming.