Web Front-end
JS Tutorial
JS CSS implements simple secondary drop-down navigation menu effect_javascript skills
JS CSS implements simple secondary drop-down navigation menu effect_javascript skills
The example in this article describes how to implement a simple secondary drop-down navigation menu effect using JS CSS. Share it with everyone for your reference. The details are as follows:
This is a CSS and JavaScript to implement a two-level drop-down navigation menu. It seems that CSS needs to be combined with JS to achieve good results. This menu also uses JS. The menu currently supports two levels, and drop-down navigation is what we often use. It is a menu form. You can use it by modifying this. The structure is quite simple. I believe you will do it well.
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-2l-fade-down-menu-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>
<title>CSS二级下拉导航菜单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<style type="text/css">
body,html{padding:0;margin:0;text-align:center;font:normal 14px 'arial';}
#mainNavBar{width:100%;background:#999;padding:10px 0;}
#nav{width:760px;height:30px;margin:0 auto;}
#nav ul{padding:0;margin:0;}
#nav ul li{position:relative;float:left;width:60px;height:30px;line-height:30px;overflow:hidden;list-style-type:none;}
#nav ul li a{display:block;color:#fff;text-decoration:none;}
#nav ul li a:hover{font-weight:bold;background:#666;}
#subNav{position:absolute;width:150px;top:30px;left:0px;padding:5px;background:#666;color:#fff;text-align:left;}
#subNav a{text-decoration:none;font-weight:normal;display:block;}
#subNav a:hover{color:#f00;background:#f00;}
</style>
</head>
<body>
<div id="mainNavBar">
<div id="nav">
<ul>
<li>
<a href="#">添加</a>
<div id="subNav">
<a href="#">日志</a>
<a href="#">分类</a>
</div>
</li>
<li>
<a href="#">管理</a>
<div id="subNav">
<a href="#">分类</a>
<a href="#">文章</a>
</div>
</li>
<li>
<a href="#">扩展</a>
<div id="subNav">
<a href="#">评论管理</a>
<a href="#">留言管理</a>
<a href="#">注销退出</a>
</div>
</li>
</ul>
</div>
</div>
<script language="javascript">
var nav=document.getElementById("nav").getElementsByTagName("li");
for(i=0;i<nav.length;i++){
nav[i].onmouseover=function(){
this.style.fontWeight="bold";
this.style.overflow="visible";
this.style.background="#666666";
}
nav[i].onmouseout=function(){
this.style.fontWeight="normal";
this.style.background="#999999"
this.style.overflow="hidden";
}
}
</script>
</body>
</html>I hope this article will be helpful to everyone’s JavaScript programming.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
How to set unknown attributes in vscode vscode method to set unknown attributes
May 09, 2024 pm 02:43 PM
1. First, open the settings icon in the lower left corner and click the settings option. 2. Then, find the CSS column in the jumped window. 3. Finally, change the drop-down option in the unknownproperties menu to the error button.
Graphical steps for setting the default properties of CSS in Visual Studio 2019
May 09, 2024 pm 02:01 PM
1. Open Visual Studio 2019, find its option settings, and click CSS. 2. Here you can see the technical settings of the following attributes. 3. Now you can set text and fill borders here. 4. At this time, you can also set the floating positioning here. 5. At this moment, you can also set the border and background here to complete the operation. 6. Finally, click the OK button here to set the CSS default properties.
How to isolate styles in components in vue
May 09, 2024 pm 03:57 PM
Style isolation in Vue components can be achieved in four ways: Use scoped styles to create isolated scopes. Use CSS Modules to generate CSS files with unique class names. Organize class names using BEM conventions to maintain modularity and reusability. In rare cases, it is possible to inject styles directly into the component, but this is not recommended.
The difference between v-show and v-if in vue
May 09, 2024 pm 01:48 PM
The main difference between v-show and v-if in Vue is: v-show: controls the display of elements by changing the display style attribute. It is lightweight and performance-friendly for elements that frequently switch to display/hide; but it will retain the space occupied by the elements. , may cause flickering. v-if: Insert or delete elements through conditions, affecting the layout flow and avoiding flickering; however, the cost of destroying and re-creating elements is high, and it is not suitable for frequently switching displayed/hidden elements.
How to register for Bitstamp exchange pro? Is it safe? Is it formal?
Aug 13, 2024 pm 06:36 PM
How to register BitstampPro? Visit the BitstampPro website. Fill in your personal information and email address. Create a password and accept the terms. Verify email address. Is BitstampPro safe? Authentication required. Enforce the use of two-factor authentication. Most assets are stored in cold storage. Use HTTPS to encrypt communication. Conduct regular security audits. Is BitstampPro legitimate? Registered in Luxembourg. Regulated by the Luxembourg Financial Supervisory Committee. Comply with anti-money laundering and know-your-customer regulations.
How to implement the custom table function of clicking to add data in dcat admin?
Apr 01, 2025 am 07:09 AM
How to implement the table function of custom click to add data in dcatadmin (laravel-admin) When using dcat...
The latest ranking list of virtual currency trading platform APP (inventory of top 10 virtual currency trading platforms)
Mar 04, 2025 pm 03:51 PM
This article lists the top ten leading cryptocurrency exchanges in the world, including OKX, Binance, Gate.io, Huobi, Kraken, Coinbase, KuCoin, Crypto.com, Bitfinex and Bitstamp. With their strong technical strength, rich product lines, strict compliance operations and innovative ecological construction, these exchanges have taken the lead in the global cryptocurrency market. The article will introduce their special functions, technical architecture, security measures, compliance qualifications and ecosystem construction respectively, providing reference for investors to choose a suitable trading platform.
What is the format of the source file?
May 09, 2024 pm 10:51 PM
Source files are uncompiled files containing original code or data, and their formats vary between programming languages and applications. Common formats include text files (.txt, .csv), programming languages (such as .py, .java), markup languages (such as .html, .css), image files (such as .png, .jpg), video files (such as .mp4, .avi), and other formats such as JSON (.json), PDF (.pdf), Word document (.doc), etc.
