* {
	box-sizing: border-box;
}

body {
	display: flex;
	flex-wrap: wrap;
	flex-direction: row;
	margin: 0;
}

aside {
	flex: 20%;
	background-color: brown;
}

aside h1 {
	margin-left: 10px;
}

nav {
	padding: 20px;
}

nav a {
	font-size: 16px;
	color: white;
	background-color: darkslategray;
	text-align: center;
	margin: 5px 0 10px 10px;
	padding: 10px;
	transition: all linear 0.1s;
	display: block;
}

nav a:hover {
	background-color: crimson;
}

main {
	flex: 80%;
	padding: 20px;
	background-color: cadetblue;
}

main img {
	width: 100%;
	max-width: 400px;
}