* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Poppins', sans-serif;
}

h1 {
	text-align: center;
	font-family: 'Montserrat', sans-serif;
	margin: 10px 0;
	font-weight: 400;
}

ul {
	text-align: center;
	background: green;
	padding: 15px 0; 
}

ul li {
	display: inline;
}

ul li a {
	text-decoration: none;
	color: #fff;
	padding: 16px;
}

header {
	background: url('../images/img-2.jpeg') no-repeat center center/cover;
	height: 100vh;
	width: 50vw;
}

@media (max-width: 500px){
	body {
		width: 100vw;
		overflow-x: hidden;
	}
	h1 {
		background: #f4f4f4;
		color: red;
		padding: 20px;
	}
	ul {
		margin-top: 10px;
	}
	header {
		width: 100vw;
	}
	ul li {
		display: block;
		padding: 15px 10px;
	} 
}