JavaScript implements multi-level drop-down menu effect with arrow logo

The example in this article describes how to implement a multi-level drop-down menu with arrow logo using JavaScript. Share it with everyone for your reference. The details are as follows:

This is a JS menu that supports multi-level display. Move the mouse to the menu item with a small triangle to pull out the second-level submenu item. A mark will be displayed above the main menu to guide the current position. The menu code uses a JS class, which can be downloaded according to the code address. This menu has not been tested online. You may need to modify the code to use it in your own website.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-focus-m-select-menu-nav-codes/

The specific code is as follows:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>多级展开的横向菜单</title>
<!--[imcss] *** Infinite Menus Core CSS: Keep this section in the document head for full validation. -->
<style type="text/css">.imcm ul,.imcm li,.imcm div,.imcm span,.imcm a{text-align:left;vertical-align:top;padding:0px;margin:0;list-style:none outside none;border-style:none;background-image:none;clear:none;float:none;display:block;position:static;overflow:visible;line-height:normal;}.imcm li a img{display:inline;border-width:0px;}.imcm span{display:inline;}.imcm .imclear,.imclear{clear:both;height:0px;visibility:hidden;line-height:0px;font-size:1px;}.imcm .imsc{position:relative;}.imcm .imsubc{position:absolute;visibility:hidden;}.imcm li{list-style:none;font-size:1px;float:left;}.imcm ul ul li{width:100%;float:none !important;}.imcm a{display:block;position:relative;}.imcm ul .imsc,.imcm ul .imsubc {z-index:10;}.imcm ul ul .imsc,.imcm ul ul .imsubc{z-index:20;}.imcm ul ul ul .imsc,.imcm ul ul ul .imsubc{z-index:30;}.imde ul li:hover .imsubc{visibility:visible;}.imde ul ul li:hover .imsubc{visibility:visible;}.imde ul ul ul li:hover .imsubc{visibility:visible;}.imde li:hover ul .imsubc{visibility:hidden;}.imde li:hover ul ul .imsubc{visibility:hidden;}.imde li:hover ul ul ul .imsubc{visibility:hidden;}.imcm .imea{display:block;position:relative;left:0px;font-size:1px;line-height:1px;height:0px;width:1px;float:right;}.imcm .imea span{display:block;position:relative;font-size:1px;line-height:0px;}.dvs,.dvm{border-width:0px}/*\*//*/.imcm .imea{visibility:hidden;}/**/</style><!--[if IE]><style type="text/css">.imcm .imea span{position:absolute;}.imcm .imclear,.imclear{display:none;}.imcm{zoom:1;} .imcm li{curosr:hand;} .imcm ul{zoom:1}.imcm a{zoom:1;}</style><![endif]--><!--[if gte IE 7]><style type="text/css">.imcm .imsubc{background-image:url(ie_css_fix);}</style><![endif]--><!--end-->
<!--[imstyles] *** Infinite Menu Styles: Keep this section in the document head for full validation. -->
<style type="text/css">
 #imenus0 .imeam span,#imenus0 .imeamj span {background-image:url(images/sample3_main_arrow.gif); width:7px; height:5px; left:-7px; top:5px; background-repeat:no-repeat;background-position:top left;}
 #imenus0 li:hover .imeam span,#imenus0 li a.iactive .imeamj span {background-image:url(images/sample3_main_arrow.gif); background-repeat:no-repeat;background-position:top left;}
 #imenus0 ul .imeas span,#imenus0 ul .imeasj span {background-image:url(images/sample3_sub_arrow.gif); width:5px; height:7px; left:-5px; top:3px; background-repeat:no-repeat;background-position:top left;}
 #imenus0 ul li:hover .imeas span,#imenus0 ul li a.iactive .imeasj span {background-image:url(images/sample3_sub_arrow.gif); background-repeat:no-repeat;background-position:top left;}
 #imouter0 {background-color:#ffffff; border-style:none; border-color:#6a6a6a; border-width:1px; padding:0px; margin:0px; }
 #imenus0 li ul {background-color:#efefef; border-style:solid; border-color:#cccccc; border-width:1px; padding:5px; margin:4px 0px 0px; }
 #imenus0 li a, #imenus0 .imctitle {color:#333333; text-align:left; font-family:Arial; font-size:12px; font-weight:normal; text-decoration:underline; border-style:solid; border-color:#dddddd; border-width:1px; padding:2px 8px; }
 #imenus0 li:hover>a {background-color:#efefef; text-decoration:underline; }
 #imenus0 li a.ihover, .imde imenus0 a:hover {background-color:#efefef; text-decoration:underline; }
 #imenus0 li a.iactive {}
 #imenus0 ul a, #imenus0 .imsubc li .imctitle {color:#555555; text-align:left; font-size:11px; font-weight:normal; text-decoration:none; border-style:none; border-color:#000000; border-width:1px; padding:2px 5px; }
 #imenus0 ul li:hover>a {color:#000000; text-decoration:underline; }
 #imenus0 ul li a.ihover {color:#000000; text-decoration:underline; }
 #imenus0 ul li a.iactive {background-color:#ffffff; }
</style><!--end-->
</head>
<body>
<div class="imrcmain0 imgl" style="width:580px;z-index:999999;position:relative;"><div class="imcm imde" id="imouter0"><ul id="imenus0">
<li class="imatm" style="width:145px;"><a class="" href="#"><span class="imea imeam"><span></span></span>Who We Are</a>
 <div class="imsc"><div class="imsubc" style="width:145px;top:0px;left:0px;"><ul >
 <li><a href="#">Overview</a></li>
 <li><a href="#">Mission & Goals</a></li>
 <li><a href="#">History</a></li>
 <li><a href="#">Management</a></li>
 <li><a href="#">Working at Tyco</a></li>
 <li><a href="#">Press Center</a></li>
 <li><a href="#"><span class="imea imeas"><span></span></span>Worldwide</a>
  <div class="imsc"><div class="imsubc" style="width:140px;top:-23px;left:132px;"><ul >
  <li><a href="#">Europe</a></li>
  <li><a href="#">Asia</a></li>
  <li><a href="#">US & Canada</a></li>
  <li><a href="#">Mexico</a></li>
  <li><a href="#">Australia</a></li>
  <li><a href="#">Middle East</a></li>
  </ul></div></div></li>
 <li><a href="#"><span class="imea imeas"><span></span></span>Board of Directors</a>
  <div class="imsc"><div class="imsubc" style="width:140px;top:-23px;left:132px;"><ul >
  <li><a href="#">Overview</a></li>
  <li><a href="#">Electronics</a></li>
  <li><a href="#">Fire & Security</a></li>
  <li><a href="#">Healthcare</a></li>
  <li><a href="#">Plastics & Adhesives</a></li>
  <li><a href="#">Engineered Producs</a></li>
  <li><a href="#">Tyco Worldwide</a></li>
  </ul></div></div></li>
 <li><a href="#">Customers</a></li>
 </ul></div></div></li>
<li class="imatm" style="width:145px;"><a href="#"><span class="imea imeam"><span></span></span>Our Commitment</a>
 <div class="imsc"><div class="imsubc" style="width:146px;top:0px;left:-1px;"><ul >
 <li><a href="#">Overview</a></li>
 <li><a href="#">People & Values</a></li>
 <li><a href="#">Governance</a></li>
 <li><a href="#">Community</a></li>
 <li><a href="#">Environmental</a></li>
 </ul></div></div></li>
<li class="imatm" style="width:145px;"><a href="#"><span class="imea imeam"><span></span></span>Our Business</a>
 <div class="imsc"><div class="imsubc" style="width:146px;top:0px;left:0px;"><ul >
 <li><a href="#">Overview</a></li>
 <li><a href="#">Electronics</a></li>
 <li><a href="#">Fire & Security</a></li>
 <li><a href="#">Healthcare</a></li>
 <li><a href="#">Plastics & Adhesives</a></li>
 <li><a href="#">Engineered Producs</a></li>
 <li><a href="#">Tyco Worldwide</a></li>
 </ul></div></div></li>
<li class="imatm" style="width:145px;"><a href="#"><span class="imea imeam"><span></span></span>Investors</a>
 <div class="imsc"><div class="imsubc" style="width:146px;top:0px;left:-1px;"><ul >
 <li><a href="#">Overview</a></li>
 <li><a href="#">Stock Quotes</a></li>
 </ul></div></div></li>
</ul><div class="imclear"> </div></div></div>
<script language="JavaScript" src="images/ocscript.js" type="text/javascript"></script>
</body>
</html>

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

JavaScript implements multi-level drop-down menu effect with arrow logo_javascript skills