#nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

#nav {
width:1400px;
  margin: auto ;
  z-index:9999;
}

#nav > ul > li {
  float: left;
  position: relative;
  font-size:16px;
}

#nav > ul > li a {
  display: block;
  background: #0F6B8E;
  color: #FFF;
  padding: 0px 0px;
  text-align: center;
  text-decoration: none;
  font-size:16px;
  transition:all 0.5s;
}

#nav > ul > li a:hover {box-shadow:inset 3px 3px 3px #0a445a; }

#nav > ul > li:hover a + ul { /*    display: block;*/
}

#nav > ul > li > ul {
  position: absolute;
  width: 100%;
  left: 0px;
  display: none;
}