а вот так - сss: #mitte{ background-color: #FFFFFF; /*position: absolute;*/ width: 100%; left: 0px; float: left; border-color: #344d61; border-style: ridge; border-left-width: 1px; border-right-width: 1px; border-top-width: 0; border-bottom-width: 0; } #grau_navi{ background-color: #bcc4cb; float: left; height: 600px; width: 13.5em; margin: 0; margin-top: 1px; } #box_navi { font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 1.2em; color: #0d2e6b; font-weight: bold; margin: 0px; display: block; line-height: 1.5em; padding: 6px 11px 0 11px; } ul#box_navi { float: left; list-style-type: none; } ul#box_navi li{ display: block; position: relative; } ul#box_navi li a:link{ color: #0d2e6b; text-decoration:none; } ul#box_navi li a:visited{ list-style-type: none; color:#0d2e6b; } ul#box_navi li a:hover{ color: #d9dfd7; } ul#box_navi li a:active { list-style-type: none; color:#d9dfd7; } #box_navi li:hover ul { display: block; } ul#box_navi li ul { display: none; top: 0; left: 0px; position: absolute; list-style-type: none; } html: <div id="mitte"> <div id="grau_navi"> <div id="box_navi"> <ul id="box_navi"> <li><a href="">Link1</a></li> <li><a href="">Link1</a> <ul> <li><a href="#">aquarell</a></li> <li><a href="#">grafik</a></li> <li><a href="#">acryl</a></li> <li><a href="#">o"l</a></li> <li><a href="#">mischtechnik</a></li> </ul> </li> <li><a href="#">Link2</a></li> <li><a href="#">Link3</a></li> <li><a href="#">Link4</a></li> <li><a href="#">Link5</a></li> </ul> </div> </div> </div>