一次偶然而无聊的实验，发现了这样的写下拉菜单的方式。完成作品后的愉悦心情，就像阿基米德泡浴缸却发现了浮力原理！

NAME:StupidCATPull-downMenuv1.0
SUPPORT:Ie(√)Firefox(√)
STANDARD:XHTML1.0Strict/CSS2.0

核心样式：
复制代码 代码如下:
html,body{
background:#000000;
height:100%;
font-size:12px;
font-family:Arial,Helvetica,sans-serif;
color:#333333;
margin:20pxauto;
overflow:hidden;
text-align:center;}

div#menu{
width:100%;
height:34px;
padding:0px0px0px5px;}

div#menudiv{
width:125px;
height:20px;
float:left;
text-transform:capitalize;
background:#cccccc;
padding:5px0px0px0px;
margin:4px1px0px0px;}

div#menudivdiv{
width:125px;
height:20px;
border-bottom:1px#333333solid;
background:#666666;
margin-top:-4px;
cursor:pointer;
display:none;}

div#menudivdiv.div1{
margin-top:3px;
border-top:1px#333333solid;}


核心代码：
复制代码 代码如下:
varmenuItem=document.getElementById("menu").getElementsByTagName("div");
for(i=0;i<menuItem.length;i++){
menuItem[i].onmouseover=function(){
varsubMenu=this.getElementsByTagName("div");
for(j=0;j<subMenu.length;j++){
subMenu[j].style.display="block";
subMenu[j].onmouseover=function(){this.style.background="#999999";this.style.color="#000000";};
subMenu[j].onmouseout=function(){this.style.background="#666666";this.style.color="#333333";};}
this.style.background="#666666"};
menuItem[i].onmouseout=function(){
varsubMenu=this.getElementsByTagName("div");
for(j=0;j<subMenu.length;j++){
subMenu[j].style.display="none";}
this.style.background="#cccccc"};
}

Stupid CAT Pull-down Menu v1.0 html,body{ background:#000000; height:100%; font-size:12px; font-family:Arial, Helvetica, sans-serif; color:#333333; margin:20px auto; overflow:hidden; text-align:center;} div#menu{ width:100%; height:34px; padding:0px 0px 0px 5px;} div#menu div{ width:125px; height:20px; float:left; text-transform:capitalize; background:#cccccc; padding:5px 0px 0px 0px; margin:4px 1px 0px 0px;} div#menu div div{ width:125px; height:20px; border-bottom:1px #333333 solid; background:#666666; margin-top:-4px; cursor:pointer; display:none;} div#menu div div.div1{ margin-top:3px; border-top:1px #333333 solid;} menu item1sub menu1sub menu2sub menu3sub menu4 menu item2sub menu1sub menu2sub menu3 menu item3sub menu1sub menu2 menu item4sub menu1sub menu2sub menu3sub menu4 menu item5sub menu1sub menu2sub menu3 menu item6sub menu1sub menu2sub menu3 [Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]