.nav-item {
  position: relative;
}

.navbar-collapse ul li a.nav-link:before {
    position: absolute;
    bottom: -5px;
    left: 0px;
    width: 100%;
    height: 2px;
    background: transparent;
    content: '';
    opacity: 0;
    -ms-transition: opacity 0.3s, -webkit-transform 0.3s;
    -webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
    transition: opacity 0.3s, transform 0.3s;
    -ms-transform: translateY(10px);
    -webkit-transform: translateY(10px);
    transform: translateY(10px);
}

.navbar-collapse ul li:hover a.nav-link:before {
	opacity: 1;
	-ms-transform: translateY(0px);
	-webkit-transform: translateY(0px);
	transform: translateY(0px);
	bottom: 0px;
	background: #ffffff;
}

.dropdown-item:hover, .dropdown-item:focus {
    color: #ffffff;
    text-decoration: none;
    background-color: #336699;
}

.dropdown-menu {
  border: 0px;
}