javascript
html鼠标滚动效果代码,JS+CSS实现大气清新的滑动菜单效果代码
本文實(shí)例講述了JS+CSS實(shí)現(xiàn)大氣清新的滑動(dòng)菜單效果代碼。分享給大家供大家參考,具體如下:
這是一款比較大氣清新的滑動(dòng)導(dǎo)航菜單,CSS和JavaScript配合完成,鼠標(biāo)放到一級(jí)菜單上,會(huì)滑出二級(jí)的菜單,兼容性也不錯(cuò),適合大多數(shù)網(wǎng)站使用,用到兩張背景圖片,請(qǐng)拷貝圖片地址下載圖片。
運(yùn)行效果截圖如下:
在線演示地址如下:
具體代碼如下:
/p>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
滑動(dòng)導(dǎo)航菜單body {margin:25px; font:12px Verdana, Arial, Helvetica}
* {padding:0; margin:0}
.dropdown {float:left; padding-right:5px}
.dropdown dt {width:188px; border:2px solid #9ac1c9; padding:8px; font-weight:bold; cursor:pointer; background:url(images/header.gif)}
.dropdown dt:hover {background:url(images/header_over.gif)}
.dropdown dd {position:absolute; overflow:hidden; width:208px; display:none; background:#fff; z-index:200; opacity:0}
.dropdown ul {width:204px; 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);
}
}
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 < 2 && d != 1) || (currh > (c.maxh - 2) && d == 1)){
clearInterval(c.timer);
}
}
源碼下載- 最新源碼
- 下載排行
- 腳本資源
- Ajax實(shí)例
- 菜單導(dǎo)航
- 層和布局
- 圖片特效
希望本文所述對(duì)大家JavaScript程序設(shè)計(jì)有所幫助。
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