subsubmenu1(青い背景)をsubmenu1(赤い背景)の下にスタックするにはどうすればよいですか?z-indexを使用してみましたが、機能しません。次のjsfiddleでは、subsubmenu1がsubmenu1の上にスタックされています。
http://jsfiddle.net/vaanipala/rVNQk/3/
html:
<!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=iso-8859-1" />
<title>Gama Corporate Services</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#submenu1,#submenu2").children().hide();
$("#subsubmenu1").children("ul").hide();
$("#submenu1,#submenu2").hover(
function(){//onmouseover
$(this).children("ul").slideDown();
},
function(){//onmouseout
$(this).children("ul").slideUp();
});
$("#subsubmenu1").hover(
function(){//onmouseover
$(this).children("ul").animate({marginLeft:"50px"});
$(this).children("ul").show();
},
function(){//onmouseout
$(this).children("ul").animate({marginLeft:"0"});
$(this).children("ul").hide();
});
});
</script>
</head>
<body>
<div class="contentwrapper">
<div id="header">
<div id="logo">
<img src="images/small_gama_logo.png" />
</div>
<div id="company_name">
Gama Corporate Services Sdn Bhd
</div>
<div id="navbar">
<ul id="menu">
<li>Home</li>
<li>About</li>
<li id="submenu1">Register Company
<ul>
<li id="subsubmenu1">New Sendirian Berhad Registration
<ul>
<li>Company Price</li>
<li>Register New Company</li>
<li>Steps to Incorporate</li>
</ul>
</li>
</ul>
</li>
<li id="submenu2">Buy Company
<ul>
<li>Sendirian Berhad Ready Made Companies in Malaysia</li>
</ul>
</li>
<li>Contact</li>
</ul>
</div>
</div>
<div id="leftcolumn">hello</div>
<div id="contentcolumn">Welcome to Gama Corporate Services.
This website is under construction</div>
<div id="rightcolumn">how ru</div>
<div id="footer">copyright gama corporate services</div>
</div><!--end contentwrapper-->
</body>
</html>
style.css
/* CSS Document */
html body{
padding:0;
margin:0 auto;
}
.contentwrapper{
width:900px;
margin-left:auto;
margin-right:auto;
height: auto !important;
}
#header{
/* height:20%;
*/ width:900px;
height:280px;
/*background-color:#009999;*/
background-image:url('../images/bg_image.png');
background-repeat:no-repeat;
float:left;
text-align:center;
}
#logo{
margin-top:15%;
float:left;
width:30%;
}
#company_name{
float:left;
font:"Times New Roman", Times, serif;
font-size:36px;
margin-top:20%;
}
#navbar{
/* height:10%;
*/ width:900px;
color:#ffffff;
float:left;
margin-top:2%;
padding:0;
z-index:0;
position:relative;
}
#menu{
list-style-type:none;
margin:0;
padding:0;
position:absolute;
}
#menu li{
float:left;
display:block;
width:120px;
text-align:center;
background-color:#FF0000;
padding:0;
margin:0;
}
/*#menu li ul ul li*/
#subsubmenu1 ul li
{position:relative;
left:0;
top:-30px;
background:#3399CC;
}
#leftcolumn{
float:left;
width:20%;
background-color:#FF9900;
}
#contentcolumn{
float:left;
width:60%;
background-color:#ffffff;
}
#rightcolumn{
float:left;
width:20%;
background-color:#FF9900;
}
#footer{
/* height:10%;
*/ width:inherit;
padding-top:4px;
background-color:#009999;
text-align:center;
}