.submenu {
    border:1px solid #78b3d3;
  visibility: hidden;
  position: absolute;
  z-index: 3;
  background:#ffffff;
}

.submenu a {
  display: block;
  font: 11px arial;
  text-align: left;
  text-decoration: none;
  padding: 5px;
  font-weight:bold;
}

.submenu a:hover {
  text-decoration: underline;
}