style.css

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
	text-decoration: none;
	font-family: 'Anton', sans-serif;
}

html {
	font-size: 62.5%;
}

.container {
	height: 100vh;
	width: 100%;
	background-color: #1b1f25;
	position: relative;
	overflow: hidden;
}

.navigation {
	width: 100%;
	height: 10rem;
	display: flex;
}

.nav-link {
	flex: 1;
	font-size: 3rem;
	text-transform: uppercase;
	letter-spacing: 0.2rem;
	color: #fff;
	display: flex;
	justify-content: center;
	align-items: center;
	background-color: var(--i);
}

.page {
	position: absolute;
	bottom: 0;
	width: 100%;
	height: calc(100vh - 10rem);
	display: flex;
	justify-content: center;
	background-color: var(--i);
	transform: translateX(100%);
	transition: transform 0.5s 0.5s;
}

.page h1 {
	margin-top: 15rem;
	font-size: 10rem;
	color: #eee;
	width: 80rem;
	letter-spacing: 0.5rem;
	text-transform: uppercase;
	text-align: center;
	text-shadow: 0 0.5rem 3rem rgba(0, 0, 0, 0.2);
}

.page h1 span {
	display: block;
	font-family: 'Kanit', sans-serif;
	text-transform: capitalize;
	color: #fff;
	letter-spacing: 0;
	margin-top: 15rem;
}

.change.page {
	transform: translateX(0);
	z-index: 100;
	transition: transform 0.5s;
}

/* Media Queries */

@media screen and (max-width: 820px) {
	html {
		font-size: 55%;
	}
}

@media screen and (max-width: 430px) {
	html {
		font-size: 50%;
	}
}

@media screen and (max-width: 375px) {
	html {
		font-size: 40%;
	}
}