Jak na toto drop-down menu pomoci css?

<style type="text/css"> 
#info {height:500px;}
 
/* ================================================================ 
This copyright notice must be untouched at all times.
 
The original version of this stylesheet and the associated (x)html
is available at http://www.cssplay.co.uk/menus/simple_vertical.html
Copyright (c) 2005-2007 Stu Nicholls. All rights reserved.
This stylesheet and the associated (x)html may be modified in any 
way to fit your requirements.
=================================================================== */
 
/* Add a margin - for this demo only - and a relative position with a high z-index to make it appear over any element below */
#menu_container {margin:25px 0 100px 15px; position:relative; width:735px; height:25px; z-index:100;}
 
/* Get rid of the margin, padding and bullets in the unordered lists */
#pmenu, #pmenu ul {padding:0; margin:0; list-style-type: none;}
 
/* Set up the link size, color and borders */
#pmenu a, #pmenu a:visited {display:block;width:120px; font-size:11px; color:#fff; height:25px; line-height:24px; text-decoration:none; text-indent:5px; border:1px solid #000; border-width:1px 0 1px 1px;}
 
/* Set up the sub level borders */
#pmenu li ul li a, #pmenu li ul li a:visited {border-width:0 1px 1px 1px;}
#pmenu li a.enclose, #pmenu li a.enclose:visited {border-width:1px;}
 
/* Set up the list items */
#pmenu li {float:left; background:#7484ad;}
 
/* For Non-IE browsers and IE7 */
#pmenu li:hover {position:relative;}
/* Make the hovered list color persist */
#pmenu li:hover > a {background:#dfd7ca; color:#c00;}
/* Set up the sublevel lists with a position absolute for flyouts and overrun padding. The transparent gif is for IE to work */
#pmenu li ul {display:none;}
/* For Non-IE and IE7 make the sublevels visible on list hover. This is all it needs */
#pmenu li:hover > ul {display:block; position:absolute; top:-11px; left:80px; padding:10px 30px 30px 30px; background:transparent url(transparent.gif); width:120px;}
/* Position the first sub level beneath the top level liinks */
#pmenu > li:hover > ul {left:-30px; top:16px;}
 
/* get rid of the table */
#pmenu table {position:absolute; border-collapse:collapse; top:0; left:0; z-index:100; font-size:1em;}
 
/* For IE5.5 and IE6 give the hovered links a position relative and a change of background and foreground color. This is needed to trigger IE to show the sub levels */
* html #pmenu li a:hover {position:relative; background:#dfd7ca; color:#c00;}
 
/* For accessibility of the top level menu when tabbing */
#pmenu li a:active, #pmenu li a:focus {background:#dfd7ca; color:#c00;}
 
/* Set up the pointers for the sub level indication */
#pmenu li.fly {background:#7484ad url(http://www.cssplay.co.uk/menus/fly.gif) no-repeat right center;}
#pmenu li.drop {background:#7484ad url(http://www.cssplay.co.uk/menus/drop.gif) no-repeat right center;}
 
 
/* This lot is for IE5.5 and IE6 ONLY and is necessary to make the sublevels appear */
 
/* change the drop down levels from display:none; to visibility:hidden; */
* html #pmenu li ul {visibility:hidden; display:block; position:absolute; top:-11px; left:80px; padding:10px 30px 30px 30px; background:transparent url(transparent.gif);}
 
/* keep the third level+ hidden when you hover on first level link */
#pmenu li a:hover ul ul{
visibility:hidden;
}
/* keep the fourth level+ hidden when you hover on second level link */
#pmenu li a:hover ul a:hover ul ul{
visibility:hidden;
}
/* keep the fifth level hidden when you hover on third level link */
#pmenu li a:hover ul a:hover ul a:hover ul ul{
visibility:hidden;
}
/* keep the sixth level hidden when you hover on fourth level link */
#pmenu li a:hover ul a:hover ul a:hover ul a:hover ul ul {
visibility:hidden;
}
 
/* make the second level visible when hover on first level link and position it */
#pmenu li a:hover ul {
visibility:visible; left:-30px; top:14px; lef\t:-31px; to\p:15px;
}
 
/* make the third level visible when you hover over second level link and position it and all further levels */
#pmenu li a:hover ul a:hover ul{ 
visibility:visible; top:-11px; left:80px;
}
/* make the fourth level visible when you hover over third level link */
#pmenu li a:hover ul a:hover ul a:hover ul { 
visibility:visible;
}
/* make the fifth level visible when you hover over fourth level link */
#pmenu li a:hover ul a:hover ul a:hover ul a:hover ul { 
visibility:visible;
}
/* make the sixth level visible when you hover over fifth level link */
#pmenu li a:hover ul a:hover ul a:hover ul a:hover ul a:hover ul { 
visibility:visible;
}
/* If you can see the pattern in the above IE5.5 and IE6 style then you can add as many sub levels as you like */
 
</style>

<div id="menu_container">
<ul id="pmenu">
<li><a href="#nogo">Home</a></li>
<li><a href="#nogo">About us</a></li>
<li class="drop"><a href="#nogo">Products<!--[if IE 7]><!--></a><!--<![endif]-->
	<!--[if lte IE 6]><table><tr><td><![endif]-->
	<ul>
	<li><a href="#nogo" class="enclose">Tripods</a></li>
	<li><a href="#nogo">Films</a></li>
	<li class="fly"><a href="#nogo">Cameras<!--[if IE 7]><!--></a><!--<![endif]-->
			<!--[if lte IE 6]><table><tr><td><![endif]-->
			<ul>
			<li><a href="#nogo" class="enclose">Compact</a></li>
			<li class="fly"><a href="#nogo">Digital<!--[if IE 7]><!--></a><!--<![endif]-->
					<!--[if lte IE 6]><table><tr><td><![endif]-->
					<ul>
					<li><a href="#nogo" class="enclose">Canon</a></li>
					<li class="fly"><a href="#nogo">Nikon<!--[if IE 7]><!--></a><!--<![endif]-->
							<!--[if lte IE 6]><table><tr><td><![endif]-->
							<ul>
							<li><a href="#nogo" class="enclose">Lenses</a></li>
							<li><a href="#nogo">Speedlight</a></li>
							<li class="fly"><a href="#nogo">Coolpix<!--[if IE 7]><!--></a><!--<![endif]-->
									<!--[if lte IE 6]><table><tr><td><![endif]-->
									<ul>
									<li><a href="#nogo" class="enclose">Coolpix S10</a></li>
									<li><a href="#nogo">Coolpix L2</a></li>
									<li><a href="#nogo">Coolpix S500</a></li>
									<li><a href="#nogo">Coolpix P5000</a></li>
									<li><a href="#nogo">Coolpix 4600</a></li>
									<li><a href="#nogo">Coolpix S6 Silver</a></li>
									</ul>
									<!--[if lte IE 6]></td></tr></table></a><![endif]-->
							</li>
							<li><a href="#nogo">D200</a></li>
							<li><a href="#nogo">D80</a></li>
							</ul>
							<!--[if lte IE 6]></td></tr></table></a><![endif]-->
					</li>
					<li><a href="#nogo">Minolta</a></li>
					<li><a href="#nogo">Pentax</a></li>
					</ul>
					<!--[if lte IE 6]></td></tr></table></a><![endif]-->
			</li>
			<li><a href="#nogo">SLR</a></li>
			</ul>
			<!--[if lte IE 6]></td></tr></table></a><![endif]-->
		</li>
	<li><a href="#nogo">Flash</a></li>
	<li><a href="#nogo">Video</a></li>
	</ul>
	<!--[if lte IE 6]></td></tr></table></a><![endif]-->
	</li>
<li><a href="#nogo">FAQs</a></li>
<li><a href="#nogo">Privacy</a></li>
<li><a href="#nogo" class="enclose">Contact us</a></li>
</ul>
</div>
 
</div> <!-- end of info -->