body {
	background: black;
	color: white;
	font-family: sans-serif;
	font-size: 19px;
}

header {
	padding-top: 2em;
	margin-bottom: 1em;
	color: lightblue;
	text-align: center;
}
header h1, main {
	margin-left: 11rem;
}

nav {
	float: left;
	width: 10rem;
	margin-right: 1rem;
}

nav ul {
	margin: 0;
	padding: 0;
	list-style-type: none;
}
nav ul li {
	margin-bottom: 0.5em;
}
nav ul li a {
	color: lightblue;
}

p#intro {
	font-weight: bold;
	font-size: 117%;
}

ul {
	list-style-type: none;
	padding-left: 0;
}

ul#products > li {
	width: 50%;
	float: left;
}

ul#products > li > img {
	max-width: 60%;
	max-height: 500px;
}

ul#products li ul {
	width: 40%;
	float: right;
}
ul#products li ul img {
	max-width: 100%;
	max-height: 100px;
}