Drop Down Menu

[samerhannoun]

Hi guysI make a drop down menu,, every thing is ok but the the sub element take the menu item separator as a background also ???here is the code

#head-elements div#block-menu-primary-links block-content ,#head-elements div#block-menu-primary-links{height:43px;}#head-elements div#block-menu-primary-links ul{ height:43px;padding:0px;background-color: #ffffff;}#head-elements div#block-menu-primary-links ul li{ display: inline; position:relative; margin: 0px;height: 44px; width: 103px;padding:0px;text-align: center;line-height: 3.3;}#head-elements div#block-menu-primary-links ul li:hover ul{display:block;position:absolute;left:0px;list-style-image: none;}#head-elements div#block-menu-primary-links ul li ul li{list-style-image: none;}#head-elements div#block-menu-primary-links ul li ul{display:none;z-index:400;}#head-elements div#block-menu-primary-links ul li a{background: url('images/border.gif')no-repeat; display: inline-block;height: 44px;width: 104px;text-align: center;}#head-elements div#block-menu-primary-links ul li.last a{background-color: white;}#head-elements div#block-menu-primary-links ul li ul li a{background-color:white;}

thanks in advance for any idea