<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<meta http-equiv="X-UA-Compatible" content="ie=edge" />
		<title>Full screen navigation</title>
		<link rel="stylesheet" href="./style.css" />
		<script
			src="https://kit.fontawesome.com/81c2c05f29.js"
			crossorigin="anonymous"
		></script>
	</head>
	<body>
		<nav class="full-screen-nav">
			<div class="backdrop"></div>
			<ul>
				<li>
					<a href="#"><i class="fas fa-home"></i> Home</a>
				</li>
				<li>
					<a href="#"><i class="fas fa-user-alt"></i> About</a>
				</li>
				<li>
					<a href="#"><i class="fas fa-tasks"></i> Projects</a>
				</li>
				<li>
					<a href="#"><i class="fas fa-comment-dots"></i> Testimonials</a>
				</li>
				<li>
					<a href="#"><i class="fas fa-at"></i> Contact</a>
				</li>
			</ul>
		</nav>

		<div class="content">
			<button class="trigger"><i class="fas fa-bars"></i></button>
		</div>

		<script src="./script.js"></script>
	</body>
</html>

@import url('https://fonts.googleapis.com/css?family=Roboto:400,500,900&display=swap');

/* General styles */

* {
	margin: 0;
	padding: 0;
}
body {
	font-family: 'Roboto', sans-serif;
	background: #e8ebf7;
	display: flex;
	justify-content: center;
	align-items: center;
	min-height: 100vh;
	font-size: 14px;
	position: relative;
}

/* Open button */
.trigger {
	background: #ffa500;
	outline: 0;
	padding: 8px 15px;
	color: #fff;
	border: 0;
	border-radius: 5px;
	font-size: 2em;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
	transition: 0.15s ease-in-out;
	cursor: pointer;
}
.trigger:hover {
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
}

/* Nav position and opening class */
.full-screen-nav {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	transition: 0.2s ease-in-out;
	display: none;
}
.open-nav {
	display: flex;
	justify-content: center;
	align-items: center;
}

/* Backgroup position and animation */
.backdrop {
	position: absolute;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.92);
	cursor: pointer;
	animation: fadeIn 0.2s ease-in-out forwards;
}
@keyframes fadeIn {
	from {
		opacity: 0;
	}
	to {
		opacity: 1;
	}
}

/* List item styling & animation */
ul {
	z-index: 9999;
	position: relative;
}
ul li {
	list-style: none;
	text-align: center;
	margin-bottom: 30px;
	animation: 0.25s ease-in-out animateList forwards;
}
ul li:last-child {
	margin-bottom: 0;
}
@keyframes animateList {
	from {
		margin-top: -60px;
		opacity: 0;
	}
	to {
		margin-top: 0;
		opacity: 1;
	}
}

/* Item links styles and hover effect*/
ul li a {
	text-decoration: none;
	color: #ccc;
	font-size: 3em;
	font-weight: 900;
	text-transform: uppercase;
	transition: 0.15s ease-in-out;
}
ul li a:hover,
ul li a i {
	color: #ffa500;
}

const trigger = document.querySelector('.trigger');
const nav = document.querySelector('.full-screen-nav');
const backdrop = document.querySelector('.backdrop');

trigger.addEventListener('click', () => nav.classList.add('open-nav'));
backdrop.addEventListener('click', () => nav.classList.remove('open-nav'));

External CSS

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External JavaScript

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