html, body {
background-image:url(praxis.jpg);
background-repeat:no-repeat;
margin:0px;
padding:0px;
}
#header {
background-color:transparent;
width:100%;
height:100px;
padding:0px;
margin-left:230px;
}
#information {
position:absolute;
background-color:transparent;
top:650px;
left:30px;
width:200px;
padding:0px;
margin:0px;
}
#inhalt {
position:absolute;
width:725px;
margin-top:120px;
margin-left:300px;
margin-right:20px;
text-align:justify;
}
#top_navigation {
            position:absolute;
            top:5px;
            left:0px;
            width:100%;
            height:139px;
            background-color:transparent;
            z-index:2;
         }
         a.top_link {
            display:block;
            position:absolute;
            width:125px;
            text-align:center;
            height:25px;
            font-family:"MS Sans Serif",sans-serif;
            font-size:15px;
            font-weight:bold;
            padding-top:1px;
            text-decoration:none;
         }
         a.top_link:link, a.top_link:visited {
            color:black;
            background-image:url(reiter1.gif);
            background-repeat:no-repeat;
            background-color:transparent;
         }       
         a.top_link:hover, a.top_link:active {
            color:blue;
            background-image:url(reiter2.gif);
            background-position:top right;
            background-repeat:no-repeat;
            background-color:transparent;
         }       
         a#home {
            bottom:0px;
            left:300px;
            z-index:3;
          }   
         a#ent {
            bottom:0px;
            left:425px;
            z-index:4;
         }
         a#psy {
            bottom:0px;
            left:550px;
            z-index:5;
         }
         a#paar {
            bottom:0px;
            left:675px;
            z-index:6;
         }
         a#ver {
            bottom:0px;
            left:800px;
            z-index:7;
         }
         a#impr {
            bottom:0px;
            left:925px;
            z-index:8;
         }
        
         a#home:hover, a#home:active,
         a#ent:hover, a#ent:active,
         a#psy:hover, a#psy:active,
         a#paar:hover, a#paar:active,
         a#ver:hover, a#ver:active,
         a#impr:hover, a#impr:active,{
            z-index:9;
         }       
         #home_sublinks {
            position:absolute;
            top:140px;
            left:300px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         #ent_sublinks {
            position:absolute;
            top:140px;
            left:425px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         #psy_sublinks {
            position:absolute;
            top:140px;
            left:550px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         #paar_sublinks {
            position:absolute;
            top:140px;
            left:675px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         #ver_sublinks {
            position:absolute;
            top:140px;
            left:800px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         #impr_sublinks {
            position:absolute;
            top:140px;
            left:925px;
            width:180px;
            border-bottom:2px solid white;
            border-left:2px solid white;
            border-right:2px solid white;
            z-index:10;
            visibility:hidden;
         }
         .sub_link {
            display:block;
            width:100%;
            text-align:left;
            height:18px;
            font-family:"MS Sans Serif",sans-serif;
            font-size:15px;
            font-weight:bold;
            padding-top:1px;
            text-decoration:none;
            border-top:1px solid white;
         }
         .sub_link:link, .sub_link:visited {
            background-color:transparent;
            color:black;
         }
         .sub_link:hover, .sub_link:active {
            background-color:transparent;
            color:blue;
         }