#headervalikko ul {
  font-family: Arial, Verdana;
  font-size: 12px;
  margin: 0;
  padding: 0;
  padding-left: 2px;
  list-style: none;
}
#headervalikko ul li {
  display: block;
  position: relative;
  float: left;
}
#headervalikko li ul { display: none; }
#headervalikko ul li a {
  display: block;
  text-decoration: none;
  color: #ffffff;
  padding: 2px 12px 2px 12px;
  background: #355E52;
  margin-left: 1px;
  white-space: nowrap;
}
#headervalikko ul li a:hover { background: #505050; }
#headervalikko li:hover ul {
  display: block;
  position: absolute;
}
#headervalikko li:hover li {
  float: none;
  font-size: 11px;
}
#headervalikko li:hover a { background: #505050; }
#headervalikko li:hover li a:hover { background: #808080; }