JavaScript,下拉菜单
web前端-js教程
本文实例讲述了JavaScript简单下拉菜单实例代码。分享给大家供大家参考。具体如下：完整可直接使用政府网站asp源码,ubuntu 开机不进系统,python爬虫网络错误,预约 php,付费seo urkejilzw
这是一款JavaScript实现的下拉菜单演示代码，带渐变效果的CSS+jQuery菜单，向下滑出型的菜单，最高支持两级，网上常见到的一种菜单风格，希望大家喜欢哦。jsp主页源码,卸载分区失败ubuntu,跨网段访问tomcat9,java网络爬虫背景,学习php需要哪些软件外包,德州seo服务lzw
运行效果截图如下：源码复利分红,vscode1003无标题,ubuntu解压 deb,tomcat8.0好吗,爬虫黑王蛇,php支付宝接口教程,seo初学者入门优化,网站自动外链源,后台模板 系统日志lzw
在线演示地址如下：http://demo.jb51.net/js/2015/js-simple-xlcd-down-menu-codes/
具体代码如下：
JavaScript下拉菜单演示代码 body {margin:25px; font:12px Verdana, Arial, Helvetica}* {padding:0; margin:0}.dropdown {float:left; padding-right:0px}.dropdown dt {width:80px; border:2px solid #9ac1c9; padding:8px; font-weight:bold; cursor:pointer; background:url()}.dropdown dt:hover {background:url()}.dropdown dd {position:absolute; overflow:hidden; width:100px; display:none; background:#fff; z-index:200; opacity:0}.dropdown ul {width:100px; border:2px solid #9ac1c9; list-style:none; border-top:none}.dropdown li {display:inline}.dropdown a, .dropdown a:active, .dropdown a:visited {display:block; padding:5px; color:#333; text-decoration:none; background:#eaf0f2; width:194px}.dropdown a:hover {background:#d9e1e4; color:#000}.dropdown .underline {border-bottom:1px solid #b9d6dc}var DDSPEED = 10;var DDTIMER = 15;function ddMenu(id,d){ var h = document.getElementById(id + '-ddheader'); var c = document.getElementById(id + '-ddcontent'); clearInterval(c.timer); if(d == 1){ clearTimeout(h.timer); if(c.maxh && c.maxh <= c.offsetHeight){return} else if(!c.maxh){ c.style.display = 'block'; c.style.height = 'auto'; c.maxh = c.offsetHeight; c.style.height = '0px'; } c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER); }else{ h.timer = setTimeout(function(){ddCollapse(c)},50); }}// collapse the menu //function ddCollapse(c){ c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);}function cancelHide(id){ var h = document.getElementById(id + '-ddheader'); var c = document.getElementById(id + '-ddcontent'); clearTimeout(h.timer); clearInterval(c.timer); if(c.offsetHeight < c.maxh){ c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER); }}function ddSlide(c,d){ var currh = c.offsetHeight; var dist; if(d == 1){ dist = (Math.round((c.maxh - currh) / DDSPEED)); }else{ dist = (Math.round(currh / DDSPEED)); } if(dist <= 1 && d == 1){ dist = 1; } c.style.height = currh + (dist * d) + 'px'; c.style.opacity = currh / c.maxh; c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')'; if((currh (c.maxh - 2) && d == 1)){ clearInterval(c.timer); } }
One 脚本之家 Navigation Item 2 Navigation Item 3 Navigation Item 4 Navigation Item 5 Two Navigation Item 1 Navigation Item 2 Navigation Item 3 默认主页 Navigation Item 5 Two Navigation Item 1 Navigation Item 2 Navigation Item 3 Navigation Item 4 Navigation Item 5 Two 默认主页 Navigation Item 2 Navigation Item 3 Navigation Item 4 Navigation Item 5 Two Navigation Item 1 默认主页 Navigation Item 3 Navigation Item 4 Navigation Item 5 Two Navigation Item 1 Navigation Item 2 Navigation Item 3 Navigation Item 4 Navigation Item 5 Two Navigat Naviga Navigati Navigat Navigatio