Navigation geht nicht

#navigation {    width: 950px;    height: 50px;    margin: 0;    padding: 0;    background: url(http://img715.imageshack.us/img715/3214/navigationbg.jpg) no-repeat left top; }  #navigation ul {    list-style: none;    margin: 0;    padding: 0; }  #navigation ul li {    display: inline;    margin: 0px; }  #navigation ul li a {    height:33px;    display: block;    float: left;    padding: 17px 15px 0 15px;    font: bold 12px Arial;    color: #FFF;    text-decoration: none;    background: url(http://img190.imageshack.us/img190/6245/navigationseparator.png) no-repeat right center; }   #navigation ul li a:hover {    color:#363636;    background: url(http://img574.imageshack.us/img574/3298/navigationhover.png) repeat-x left top; }  #navigation ul li#active a {    color:#363636;    background: url(ihttp://img574.imageshack.us/img574/3298/navigationhover.png) repeat-x left top; }