@media only screen and (min-width: 1024px) {
  
  .menu li .submenu {
    transition: 350ms all;
  }

  .menu li:hover > .submenu {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .menu li .submenu {
    position: absolute;
    transform: translateY(50px);
    opacity: 0;
    visibility: hidden;
  }
  
}