nav {
	list-style-type: none;
	margin: 0;
	padding: 0;
	overflow: hidden;
	display: flex;
	flex-direction: row;
	flex: 1;
	justify-content: center;
	align-items: center;
	font-family: "Trebuchet MS";
	text-transform: uppercase;
}

nav a {
	padding: 1rem;
	text-decoration: none; 
	color: #000;
	border-bottom: 2px solid transparent;
}

nav a:hover {
	color: #99ccff;
	font-weight: bold;
	border-bottom: 2px solid #000;
	transition: border-bottom 0.4s ease-in;
}

a.active {
	color: #99ccff;
	font-weight: bold;
	border-bottom: 2px solid #000;