nav {
  position: fixed;
  z-index: 2;
  top: 0px !important;
  left: 0px;
  padding-top: 0px;
  width: 100%;
  height: 3rem;
  justify-content: center;
  font-size: 1.4rem;
}
.menu {
  display: flex;
  justify-content: center;
}
.dropdown {
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--color-l2);
  background: var(--color-n0);
  position: relative;
  perspective: 4cm;
  margin-top: -0.5rem;
  padding: 0.5rem 1rem;
  z-index: 3;
}
.dropdown:hover {
  color: var(--color-l3);
  background: var(--color-l1);
  cursor: pointer;
}
.dropdown:hover .dropdown_menu li {
  display: block;
}
.dropdown_menu {
  position: absolute;
  top: 100%;
  left: 0;
  perspective: 4cm;
  z-index: 1;
}
.dropdown_menu li {
  display: none;
  white-space: nowrap;
  color: var(--color-l2);
  background-color: var(--color-n0);
  opacity: 0;
}
.dropdown_menu a, .dropdown a {
  color: var(--color-l2);
  text-decoration: none;
  display: block;
}
.dropdown_menu a:hover, .dropdown a:hover {
  color: var(--color-l3);
}
.dropdown_menu a {
  padding: 0.5rem 1rem;
}
.dropdown_menu li:hover {
  color: var(--color-l2);
  background-color: var(--color-l1);
}
.dropdown:hover .dropdown_menu--animated {
  display: block;
}
.dropdown_menu--animated {
  display: none;
}
.dropdown_menu--animated li {
  display: block;
  opacity: 1;
}
.dropdown_menu-10 {
  animation: rotateY 300ms ease-in-out forwards;
  transform-origin: top center;
}
@-moz-keyframes rotateY {
  0% {
    transform: rotateY(90deg);
  }
  80% {
    transform: rotateY(-10deg);
  }
  100% {
    transform: rotateY(0);
  }
}
@-webkit-keyframes rotateY {
  0% {
    transform: rotateY(90deg);
  }
  80% {
    transform: rotateY(-10deg);
  }
  100% {
    transform: rotateY(0);
  }
}
@-o-keyframes rotateY {
  0% {
    transform: rotateY(90deg);
  }
  80% {
    transform: rotateY(-10deg);
  }
  100% {
    transform: rotateY(0);
  }
}
@keyframes rotateY {
  0% {
    transform: rotateY(90deg);
  }
  80% {
    transform: rotateY(-10deg);
  }
  100% {
    transform: rotateY(0);
  }
}