#hauptmenu {
   float: left;
   margin-right: 10px;
   width:100%;
  }

.hauptmenuitem {
	background-color: #ececec;
	border-right: 10px solid #000;
	padding: 2px;
	margin-top: 4px;
font-size: 12px;
	margin-top:8px;
border: 1px solid red;
}

.hauptmenuitem a{
  display: block;
  text-decoration: none;
  color: #000;
  font-weight:bold;
  padding: 4px 2px;
  }
.hauptmenuitem a:hover{
background-image: url(../gfx/arrow_r.gif);
    background-repeat: no-repeat;
    background-position: left center;

  display: block;
  text-decoration: none;
  color: #000;
  font-weight:bold;
  padding: 4px 2px;
    padding-left: 14px;
  }
#submenu {
   position: relative;
   color: #000000;
   font-size: 10px;
   font-weight:normal;

   text-decoration: none;
   width: 98px;
   z-index: 20;
 }
#submenu a {
 background-image: url(../gfx/link_extern.gif);
    background-repeat: no-repeat;
    background-position: left center;
    padding-left: 10px;
}
head:first-child+body #submenu {
   display: none;
   }

 div.hauptmenuitem a:hover {
   color: red;
  }

div.hauptmenuitem:hover #submenu {
  display:block;
  
  }