Web Front-endJS Tutorialjs implements black multi-level menu navigation bar effect suitable for material websites_javascript skillsjs implements black multi-level menu navigation bar effect suitable for material websites_javascript skills
The example in this article describes the js implementation of a black multi-level menu navigation bar effect suitable for material websites. Share it with everyone for your reference. The details are as follows:
This is a black multi-level menu navigation bar suitable for material websites. It does not require jQuery and is implemented using CSS javaScript. The overall effect is very good and it is also very good for learning CSS.
The screenshot of the running effect is as follows:
The online demo address is as follows:
http://demo.jb51.net/js/2015/js-black-color-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+js打造超酷黑灰色二级横向下拉导航菜单</title>
<style>
body{margin:0;padding:0;color:#000;}
#mainHeader{width:100%;z-index:3020;position:relative;}
#mainHeader ul,#mainHeader li{position:relative;margin:0;padding:0;list-style:none;z-index:3020;}
#headerTop{background:#222;background:linear-gradient(bottom,#171717 0,#222 10%);background:-moz-linear-gradient(bottom,#171717 0,#222 10%);background:-webkit-gradient(linear,left bottom,left top,color-stop(0,#171717),color-stop(10%,#222));z-index:3020;height:52px;}
#headerBottom{border-top:1px solid #4f4f4f;border-bottom:1px solid #000;position:relative;height:34px;background:#2c2c2c;background:linear-gradient(top,#3c3c3c 0,#1d1d1d 100%);background:-moz-linear-gradient(top,#3c3c3c 0,#1d1d1d 100%);background:-webkit-gradient(linear,left top,left bottom,color-stop(0,#3c3c3c),color-stop(100%,#1d1d1d));z-index:3010;}
#navmenu{width:900px;margin:0 auto;position:relative;font-size:14px;}
#navmenu li{display:block;position:relative;float:left;border-top:0;border-left:1px solid #454545;border-bottom:0;border-right:1px solid #151515;xheight:18px;}
#navmenu li a{text-shadow:1px 1px 1px black;display:block;padding:8px 18px;color:#fff;text-decoration:none;white-space:nowrap;}
#navmenu li a:hover{padding-top:5px;border-top:3px solid #ff0000;}
.newSash{position:relative;}
.newSash .newSashSpan{background:url(images/newSashRed.gif) top left no-repeat;width:26px;height:26px;position:absolute;top:-1px;right:0;}
.downArrow{display:block;border-color:#fff transparent transparent transparent;border-style:solid;border-width:3px;height:0;width:0;position:absolute;top:16px;right:8px;_border:none;}
#navmenu div{position: absolute;visibility: hidden; padding: 0;margin-left:-1px;margin-top:2px; background: #313131;border:1px solid #222;}
#navmenudiv a{position: relative;display: block;margin: 0;padding: 8px 10px;border-bottom:1px solid #fff;width: auto;white-space: nowrap;text-align: left;text-decoration: none;background: #666;color: #fff;}
#navmenu div a:hover{background: #222;border-top:none;border-left:3px solid #ff0000;color: #FFF;padding: 8px 10px;}
</style>
<script type="text/javascript">
var timeout = 500;
var closetimer = 0;
var ddmenuitem = 0;
function mopen(id)
{
mcancelclosetime();
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';
}
function mclose()
{
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}
document.onclick = mclose;
</script>
</head>
<body style="text-align:center">
<div id="mainHeader" >
<div id="headerTop"></div>
<div id="headerBottom">
<ul id="navmenu">
<li><a href="#" onmouseover="mopen('m1')" onmouseout="mclosetime()">网站首页<span class="downArrow"></span></a>
<div id="m1" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">脚本之家</a>
<a href="#">电子商务</a>
<a href="#">网络营销人才</a>
<a href="#">导航条代码</a>
<a href="#">网站营销</a> </div>
</li>
<li><a href="#" onmouseover="mopen('m2')" onmouseout="mclosetime()">导航条代码<span class="downArrow"></span></a>
<div id="m2" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">脚本之家</a>
<a href="#">电子商务</a>
<a href="#">网络营销人才</a>
<a href="#">导航条代码</a>
<a href="#">网站营销</a> </div>
</li>
<li><a href="#" onmouseover="mopen('m3')" onmouseout="mclosetime()">网页素材<span class="downArrow"></span></a>
<div id="m3" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">脚本之家</a>
<a href="#">电子商务</a>
<a href="#">网络营销人才</a>
<a href="#">导航条代码</a>
<a href="#">网站营销</a> </div>
</li>
<li class="newSash"><a href="#">脚本之家</a><span class="newSashSpan"></span>
</li>
<li><a href="#" onmouseover="mopen('m4')" onmouseout="mclosetime()">开源源码<span class="downArrow"></span></a>
<div id="m4" onmouseover="mcancelclosetime()" onmouseout="mclosetime()">
<a href="#">脚本之家</a>
<a href="#">电子商务</a>
<a href="#">网络营销人才</a>
<a href="#">导航条代码</a>
<a href="#">网站营销</a> </div>
</li>
<li><a href="#">网站营销</a>
</li>
<li><a href="#">网站建设</a>
</li>
</ul>
</div>
</div>
</div>
<br><br><br><br>
<p><p>非常小巧的JS下拉菜单代码，兼容：IE6+, Firefox 1.5+, Opera 8+, Safari 3+, Chrome 0.2+</p></p>
</body>
</html>
I hope this article will be helpful to everyone’s JavaScript programming design.
JavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AMJavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.
JavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AMThe main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.
Understanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AMUnderstanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.
Python vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AMPython is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.
Python vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AMPython and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.
From C/C to JavaScript: How It All WorksApr 14, 2025 am 12:05 AMThe shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.
JavaScript Engines: Comparing ImplementationsApr 13, 2025 am 12:05 AMDifferent JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.
Beyond the Browser: JavaScript in the Real WorldApr 12, 2025 am 12:06 AMJavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Dreamweaver CS6
Visual web development tools
