css horizontal list menu

Learn how to build simple css horizontal list menu, its based on ordinary HTML list, with support for one level of nested lists. The nested lists are transformed into 2nd level drop down menus that appears dynamically onmouseover, using CSS for interface syle and arraw image beside menu list for dropdown menu.

CSS code for css Horzontal Java Menu


<style>
.horizontalcssmenu ul{
margin: 0;
padding: 0;
list-style-type: none;
}
/*Top level list items*/
.horizontalcssmenu ul li{
margin: 0;
position: relative;
display: inline;
float: left;
}
/*Top level menu link items style*/
.horizontalcssmenu ul li a{
display: block;
width: 110px; /*Width of top level menu link items*/
padding: 2px 8px;
border: 1px solid #202020;
border-left-width: 0;
text-decoration: none;
background: url(menubg.gif) center center repeat-x;
color: black;
font: bold 13px Tahoma;
}
/*Sub level menu*/
.horizontalcssmenu ul li ul{
left: 0;
top: 0;
border-top: 1px solid #202020;
position: absolute;
display: block;
visibility: hidden;
z-index: 100;
}
/*Sub level menu list items*/
.horizontalcssmenu ul li ul li{
display: inline;
float: none;
}
/* Sub level menu links style */
.horizontalcssmenu ul li ul li a{
width: 160px; /*width of sub menu levels*/
font-weight: normal;
padding: 2px 5px;
background: #e3f1bd;
border-width: 0 1px 1px 1px;
}
.horizontalcssmenu ul li a:hover{
color:#000;
background: url(menubgover.gif) center center repeat-x;
}
.horizontalcssmenu ul li ul li a:hover{
color:#000;
background: #cde686;
}
.horizontalcssmenu .arrowdiv{
position: absolute;
right: 0;
background: transparent url(menuarrow.gif) no-repeat center left;
}
* html p#iepara{ /*For a paragraph (if any) that immediately follows menu, add 1em top spacing between the two in IE*/
padding-top: 1em;
}
/* Holly Hack for IE \*/
* html .horizontalcssmenu ul li { float: left; height: 1%; }
* html .horizontalcssmenu ul li a { height: 1%; }
/* End */
</style>

HTML code for css Horzontal Java Menu


<div class="horizontalcssmenu">
<ul id="cssmenu1">
<li style="border-left: 1px solid #202020;">
	<a href="http://function-code.blogspot.com/">Memu 1</a></li>
<li><a href="http://function-code.blogspot.com/search/label/HTML">Menu 2</a></li>
<li><a href="http://function-code.blogspot.com/search/label/CSS">Menu 3</a></li>
<li><a href="http://function-code.blogspot.com/">Menu 4</a>
    <ul>
<li><a href="http://function-code.blogspot.com/">Submenu 4-1</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 4-2</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 4-3</a></li>
</ul>
</li>
<li><a href="http://function-code.blogspot.com/search/label/JavaScript">Menu 5</a></li>
<li><a href="http://function-code.blogspot.com/">Menu 6</a>
    <ul>
<li><a href="http://function-code.blogspot.com/">Submenu 6-1</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 6-2</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 6-3</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 6-4</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 6-5</a></li>
<li><a href="http://function-code.blogspot.com/">Submenu 6-6</a></li>
</ul>
</li>
</ul>
</div>

HTML code for css Horzontal Java Menu


<script>
var cssmenuids=["cssmenu1"] //Enter id(s) of CSS Horizontal UL menus, separated by commas
var csssubmenuoffset=-1 //Offset of submenus from main menu. Default is 0 pixels.

function createcssmenu2(){
for (var i=0; i < cssmenuids.length; i++){
  var ultags=document.getElementById(cssmenuids[i]).getElementsByTagName("ul")
    for (var t=0; t < ultags.length; t++){
	ultags[t].style.top=ultags[t].parentNode.offsetHeight+csssubmenuoffset+"px"
    	var spanref=document.createElement("span")
	spanref.className="arrowdiv"
	spanref.innerHTML="    "
	ultags[t].parentNode.getElementsByTagName("a")[0].appendChild(spanref)
    	
	ultags[t].parentNode.onmouseover=function(){
		this.style.zIndex=100
	    	this.getElementsByTagName("ul")[0].style.visibility="visible"
		this.getElementsByTagName("ul")[0].style.zIndex=0
    		}

    	ultags[t].parentNode.onmouseout=function(){
		this.style.zIndex=0
		this.getElementsByTagName("ul")[0].style.visibility="hidden"
		this.getElementsByTagName("ul")[0].style.zIndex=100
    		}
    }
  }
}

if (window.addEventListener)
window.addEventListener("load", createcssmenu2, false)
else if (window.attachEvent)
window.attachEvent("onload", createcssmenu2)
</script>