[erledigt] CSS Design: Hover Effekt wird falsch angezeigt

li.nav_element {
float:left;
position: relative;
list-style-type: none;
width:185px;
padding:10px 0px 2px 0px;
margin-right:-1px;
margin-bottom:5px;
background-color:#;
background-image:url(http://img.webme.com/pic/t/tgw-hilfe/blackbuttondrei.png);
border:1px solid #; }


li.nav_element a:hover{
color: #000000;
background-color:#C9C9C9;
background-image:url(http://img.webme.com/pic/t/tgw-hilfe/button6.png);}

li.nav_element:hover{
color: #000000;
background-color:#C9C9C9;
background-image:url(http://img.webme.com/pic/t/tgw-hilfe/button6.png);}