#header_nav {
float:left;
position:relative;
background-color: #021C35; 
padding: 0 0 0 0;
width:100%;
/* eigentlich zur korektur */
/* margin-top: -5px; */
}
#header_nav ul {
font-family:arial;
line-height:1em;
list-style-image:none;
list-style-position:outside;
list-style-type:none;
margin:0;
padding:0;
white-space:nowrap;
margin-left:3px;
}

#header_nav ul li {isyssoftware.css (Linie 83)
font-size:12px;
padding-left:15px;
}
#header_nav li {isyssoftware.css (Linie 93)
background:transparent url(images/sliding_door/round/left.gif) no-repeat scroll left top;
float:left;
margin:0;
padding:0 0 0 3px;
}
#header_nav a, #header_nav strong, #header_nav li {
background-color:#021C35;
background-image:none;
color:#D0D0D0;
text-decoration:none;
}
#header_nav li {
line-height:1.5em;
margin-left:1.5em;
}

#header_nav ul li {
font-size:12px;
padding-left:15px;
list-style-type: none;
}
#header_nav li {
background:transparent url(images/sliding_door/round/left.gif) no-repeat scroll left top;
float:left;
margin:0;
padding:0 0 0 3px;
}
#header_nav a, #header_nav strong, #header_nav li {
background-color:#021C35;
background-image:none;
color:#D0D0D0;
text-decoration:none;
}

/*  Die Links im Men� formatieren */
#header_nav li a {

border-right:1px solid white;
margin:5px 0 10px;
padding:0 10px 0 0;
}
#header_nav a {
display:block;
}
#header_nav a, #header_nav strong, #header_nav li {
background-color:#021C35;
background-image:none;
color:#D0D0D0;
text-decoration:none;
}

#header_nav ul li#current a {
color:#08869F;
}

#header_nav ul li a:focus,#header_nav ul li a:hover,#header_nav ul li a:active{
  color:#336699;
}