.navbar-expand-lg .nav-item {
	position: relative;
}
.navbar-expand-lg .nav-item.nav-link {	
	display: block;
	width: 4rem;
}
.navbar-expand-lg .nav-item:hover .nav-link {
	color: #F85500;	
	text-align: center;
}
.navbar-expand-lg .nav-item:hover .nav-link::after {	
	content: "";
	display: block;
	width: 4rem;
	border-radius: 2px;
	height: 4px;
	margin-top:10px;
	position: absolute;
	background-color: #F85500;
}