body{
    margin: 0px;
    padding:0px;
    background-image: url(bg.gif);
    text-align: center;
}

img{
border-width: 0px;
}

th{
height: 40px;
text-decoration:underline;
}
#box_main{
    width:100%;
    position: absolute;
    top: 0px;
    bottom: 0px;
}
    #main{
         height: 100%;
         width: 760px;
         margin: 0px auto;
         text-align: left;
         background-color: #dddddd;
         border:3px solid #000000;
         border-bottom-width:0px;
         border-top-width:0px;
         padding-bottom: 0px;
         overflow: hidden;
    }
    #header{
         padding-top: 30px;
         text-align: center;
    }
    #content{
         margin: 15px 80px;
    }

#box_navi{
    width:100%;
    position: absolute;
    height:0px;
    bottom: 68px;
}
    #navi{
         margin: 0px auto;
         text-align: center;
         overflow: hidden;
         width: 760px;
         height: 69px;    /*Eingeklappt 34px*/
    }
         #navi_header{
              padding: 5px;
              border:3pt solid #000000;/*#bbbbbb;*/
              border-bottom-width:3px;
              margin: 0px 80px;
              letter-spacing: 1.3em;
         }
         #navi_links{
              padding: 5px;
              border:3pt solid #000000;
              border-top-width: 0px;
              margin: 0px 80px;
         }
              .navi_link{
                   text-decoration: none;
                   color: #000000;
              }
              .navi_link:hover{
                   text-decoration: underline;
              }
              
#w3c{
    position: absolute;
    right: 0px;
    bottom: 0px;
}
              

.layer{
    position:absolute;
    top:150px;
    bottom: 150px;
    margin: 0px auto;
    border:3pt solid #000000;
    overflow: hidden;
    width: 678px;
    height: 400px;
    visibility: hidden;
    background-color: #ffffff;
}
    .layer_head{
         padding: 10px;
         margin-bottom: 0px;

         border:0pt solid #bbbbbb;
         border-bottom-width:2px;
         font-size: x-large;
         height: 20px;
    }
         .layer_icon{
              float: right;
         }
    .layer_content{
         height: 340px;
         padding: 10px;
         margin-top: 0px;
         text-align: left;
         overflow: hidden;
    }
    
#imp_bild{
    border:1px solid #000000;
}