Небольшой косяк с меню

ul#cssmenu {
      border: 0 none;
      font: bold 12px/28px Verdana,Arial;
      height: 30px;
      list-style: none outside none;
    margin:0 auto !important;
      padding: 0;
      width: 970px;
}
* html ul#cssmenu {
      border: 0 none;
      font: bold 12px/28px Verdana,Arial;
      height: 30px;
      list-style: none outside none;
    margin:0 auto !important;
      padding: 0;
      width: 970px;
}
ul#cssmenu li {
      border: 0 none;
      display: inline;
      float: left;
      height: 30px;
      list-style: none;
      margin: 0;
      padding: 0;
      position: relative;
}
ul#cssmenu li.first {
   margin-left:20px;
}
ul#cssmenu li.last{
   margin-right:20px;
}
ul#cssmenu a {
      border: 0 none;
      color: #FFFFFF;
      display: block;
      float: none !important;
      font: bold 12px/28px Verdana,Arial;
      height: auto !important;
      padding: 0 15px;
      text-decoration: none;
}
* html ul#cssmenu a{
   padding: 0 13px;
}

ul#cssmenu li {
  margin: 0;
  border: 0 none;
  padding: 0;
  float: left;
  display: inline;
  list-style: none;
  position: relative;
  height: 30px;
}

ul#cssmenu ul {
  margin: 0;
  border: 0 none;
  padding: 0;
  width: 150px;
  list-style: none;
  display: none;
  position: absolute;
  top: 30px;
  left: 0;
}

ul#cssmenu ul:after {
  clear: both;
  display: block;
  font: 1px/0px serif;
  content: ".";
  height: 0;
  visibility: hidden;
}

ul#cssmenu ul li {
  width: 180px;
  float: left;
  display: block !important;
  display: inline;
}