/* nav */
.nav-menu,
.nav-menu ul,
.nav-menu li,
.nav-menu a {
  background: #fff;
  margin: 0;
  padding: 0;
  line-height: normal;
  list-style: none;
  display: block;
  position: relative;
}

.nav-menu {
  -webkit-box-shadow: 0 0 3px 3px rgba(0, 0, 0, 0.22);
  box-shadow: 0 0 3px 3px rgba(0, 0, 0, 0.22);
}

.nav-menu ul {
  opacity: 0;
  position: absolute;
  top: 100%;
  left: -9999px;
  z-index: 999;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.nav-menu li:hover > ul {
  left: 0;
  opacity: 1;
  z-index: 1000;
}
.nav-menu ul li:hover > ul {
  top: 0;
  left: 100%;
}
.nav-menu li {
  cursor: default;
  float: left;
  white-space: nowrap;
}
.nav-menu ul li {
  float: none;
}

/* sub width */
.nav-menu ul {
  min-width: 12em;
  -webkit-box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.25);
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.25);
}

/* center */
.nav-center {
  float: right;
  right: 50%;
}
.nav-center > li {
  left: 50%;
}

/* root */
.nav-menu a {
  padding: 0 10px;
  color: #333;
  font-weight: normal;
  font-size: 14px;
  line-height: 35px;
  text-decoration: none;
}

/* root: hover/persistence */
.nav-menu a:hover,
.nav-menu a:focus,
.nav-menu li:hover a {
  background: #eee;
  color: #333;
}

/* 2 */
.nav-menu li li a,
.nav-menu li:hover li a {
  padding: 8px 10px;
  background: #fff;
  color: #333;
  font-size: 14px;
  line-height: normal;
}

/* 2: hover/persistence */
.nav-menu li:hover li a:hover,
.nav-menu li:hover li a:focus,
.nav-menu li:hover li:hover a {
  background: #eee;
}

/* vertical */
.nav-vertical {
  max-width: 220px;
}
.nav-vertical ul {
  top: 0;
  left: -9999px;
}
.nav-vertical li {
  width: 100%;
  float: none;
}
.nav-vertical li:hover > ul {
  left: 100%;
}