html,
body {
	margin: 0;
	padding: 0;
	width: 100%;
}

body {
	font-family: sans-serif;
}

header {
	width: 100%;
	height: 100vh;
}

.content {
	width: 100%;
	margin: 4em auto;
	font-size: 20px;
	line-height: 30px;
	text-align: justify;
}

.logo {
	position: fixed;
	float: left;
	color: white;
	font-weight: bold;
	font-size: 24px;
}

nav {
	width: 100%;
}

nav ul {
	list-style: none;
	/* background: rgba(0, 0, 0, 0); */
	overflow: hidden;
	color: white;
	padding: 0;
	text-align: center;
	margin: 0;
	transition: 1s;
	cursor: pointer;
}

nav.black ul {
	/* background: #000; */
	color: #fff;
}

nav ul li {
	display: inline-block;
	padding: 20px;
	color: white;
}

nav ul li a {
	text-decoration: none;
	color: white;
	font-size: 18px;
	font-family: sans-serif;
	text-transform: uppercase;
	letter-spacing: 2px;
}