nav.stick {
  zoom: 1;
  filter: alpha(opacity=88);
  opacity: 0.90;
  -webkit-transition: opacity 0.3s ease;
  -moz-transition: opacity 0.3s ease;
  -o-transition: opacity 0.3s ease;
  transition: opacity 0.3s ease; 
  background:#3E3E3E}
  nav.stick:hover {
    filter: alpha(opacity=100);
    opacity: 1.0; }