Bonjour, j'ai pris le code de source d'une page internet et je voulais suivre le meme design du menu(a l'aide de son code source), mais il y a une erreurs qui m'�chappe :

menu :
Code html : Sélectionner tout - Visualiser dans une fenêtre à part
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<div class="menu-top">
    <div class="menu-rubrique cb">
        <ul id="MenuBar1" class="MenuBarHorizontal">
            <li><a href="javascript:;">Accueil 1</a>
                <ul>
	            <li><a href="javascript:;" class="MenuBarItemSubmenu">ac 1</a>
                        <ul>
                            <li><a href="#">ac11</a></li>
                            <li><a href="#">ac12</a></li>      
                        </ul>
                    </li>
                    <li><a href="#">ac2</a></li>
                </ul>
            </li>
            <li class="sepmenutop"><a href="javascript:;"><img border=0 src="Images/separ_menu-central.gif" alt=""  /></a> </li>
            <li><a href="javascript:;">Accueil 2</a>
                <ul>
                    <li><a href="#">Acc2</a></li>
                    <li><a href="#">Acc2</a></li>
                </ul>
            </li>
            <li class="sepmenutop"><a href="javascript:;"><img border=0 src="Images/separ_menu-central.gif" alt=""  /></a> </li>
            <li><a  href="javascript:;">Stations de services</a>
                <ul>
                    <li><a href="#">ss1</a></li>
                    <li><a href="#">ss2</a></li>
                </ul>
            </li>
            <li class="sepmenutop"><a href="javascript:;"><img border=0 src="Images/separ_menu-central.gif" alt=""  /></a> </li>
            <li><a href="javascript:;">Carri�res</a>
                <ul>
	            <li><a href="#">c1</a></li>
                    <li><a href="#">c2</a></li>
                    <li><a href="#">c3</a></li>
                </ul>
            </li>
            <li class="sepmenutop"><a href="javascript:;"><img border=0 src="Images/separ_menu-central.gif" alt =""  /></a> </li>
            <li><a href="javascript:;">Terrains</a>
                <ul>
	            <li><a href="#">t1</a></li>
                    <li><a href="#">t2</a></li>
                    <li><a href="#">t3</a></li>
                </ul>
            </li>
            <li class="sepmenutop"><a href="javascript:;"><img border=0 src="Images/separ_menu-central.gif"  alt="" /></a> </li>
            <li><a href="javascript:;">Occupations divers</a>
                <ul>
	            <li><a href="#">o1</a></li>
                    <li><a href="#">o2</a></li>
                    <li><a href="#">o3</a></li>
                </ul>
            </li>
        </ul>
    </div>
</div>

css :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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.sepmenutop a
{
	background:none !important;
}
/* The outermost container of the Menu Bar, an auto width box with no margin or padding */
ul.MenuBarHorizontal
{
	margin: 0;
	padding: 0;
	list-style-type: none;
	font-size: 11px;
	cursor: default;
	width: 632px;
	vertical-align: text-top;
	padding-top:6px;
	margin-left:20px;
 
 
}
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
{
	z-index: 1000;
}
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
{
	margin: 0;	
	list-style-type: none;
	font-size: 11px;
	position: relative;
	text-align: left;
	cursor: pointer;	
	float: left;
	line-height:32px;
	margin-top:-9px;
	margin-right:37px;
}
 
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
{
	margin: 0;
	padding-left: 4px;
	padding-top: 8px;
	padding-bottom:4px;
	list-style-type: none;
	font-size: 11px;
	z-index: 1020;
	cursor: default;
	width: 160px;
	position: absolute;
	left: -1000em;
	text-align:left;
 
}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
{
	left: auto;
}
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li 
{
	width: 220px;
	margin-bottom:1px;
    background-image:url('/PublishingImages/bg_menuh1.gif');
	padding-bottom:0px;	
	line-height:27px;
	border:1px solid #e3e3e3;
    color:#8b8b8b;
}
ul.MenuBarHorizontal ul li ul li
{
	width: 340px;
	margin-bottom:1px;
    background-image:url('/PublishingImages/bg_menuh1.gif');
	padding-bottom:0px;	
	line-height:27px;
	border:1px solid #e3e3e3;
    color:#8b8b8b;
}
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
{
	position: absolute;
	margin: 0% 0 0 214px;
	}
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
{
	left: auto;
	top: 0;
}
 
/*******************************************************************************
 
 DESIGN INFORMATION: describes color scheme, borders, fonts
 
 *******************************************************************************/
 
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
{
	/*border: 1px solid #859215;*/
	border-radius:10px;
 
}
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
{
	display: block;
	cursor: pointer;
	color:#4c75a7;
	height:28px;
	font-family:arial;
	font-size:11px;
	padding-top:4px;
	font-weight:bolder;	
	padding-bottom:4px;
	padding-left:4px;
}
/* hover links */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
{
 
	color:#3b3b3b;
	font-weight:bold !important;
 
}
/* HOVER LIENS UL LI */
 ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
{	
	color: #11abc6;
	font-weight:bold !important;
 
 
}
 
ul.MenuBarHorizontal a.MenuBarItemHover
{
		 background-image:url('/PublishingImages/bg_menuh2.gif');
	font-weight:bolder !important;
		line-height:27px;
}
/**sous menu links *****/
ul.MenuBarHorizontal ul li a
{
 
 
	color: #8b8b8b;
	font-weight:bolder !important;
	text-transform: capitalize;
	font-family:Arial, Helvetica, sans-serif;
	font-size:11px;
 
 
 
 
}
 
/*******************************************************************************
 
 SUBMENU INDICATION: styles if there is a submenu under a given menu item
 
 *******************************************************************************/
 
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
{
	/*background-image: url(SpryMenuBarDown.gif);*/
	background-repeat: no-repeat;
	background-position: 95% 50%;
 
}
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
{
	/*background-image: url(SpryMenuBarRight.gif);*/
	background-repeat: no-repeat;
	background-position: 95% 50%;
 
 
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
{
	background-image: url(SpryMenuBarDownHover.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
}
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
{
	background-image: url(SpryMenuBarRightHover.gif);
	background-repeat: no-repeat;
	background-position: 95% 50%;
 
}
 
 
/*******************************************************************************
 
 BROWSER HACKS: the hacks below should not be changed unless you are an expert
 
 *******************************************************************************/
 
/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
{
	position: absolute;
	z-index: 1010;
	filter:alpha(opacity:0.1);
}
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
{
	ul.MenuBarHorizontal li.MenuBarItemIE
	{
		display: inline;
		f\loat: left;
		color:#FFF;
		padding:0px;
 
	}
}
Mes sous rubriquen'apparaissent pas, j'ai uniquement la premiere lignes (accueil 1, accueil 2.....)

veuillez m'aider