body {
	font-family: Arial;
	font-size: 18px;
	margin: 0px;
}

main {
	margin: 0px;
	min-width: 40%;
	max-width: 900px;
	min-height: 75vh;
	display: inline-block;
	padding: 20px;
	text-align: left;
}

article {
	line-height: 1.6;
	color: #111;
}

header {
	box-sizing: border-box;
	width: 100%;
	height: 80px;
	background-color: slateblue;
	padding: 20px;
	color: white;
}

header a {
	color: white;
	font-weight: bold;
	font-size: 32px;
	text-decoration: none;
	display: inline-block;
}

/* Navigation */
nav {
	float: right;
}

nav a {
	color: white;
	font-weight: bold;
	font-size: 20px;
	text-decoration: none;
	display: inline-block;
	margin-right: 30px;
}

nav a:hover {
	text-decoration: underline;
	color: white;
}

/* Left vertical course submenu */
div.subjects {
	display: inline-block;
	width: 300px;
	vertical-align: top;
	background-color: LightSteelBlue;
	font-size: 16px;
}

div.subjects > p {
	margin-bottom: 5px;
	padding-left: 20px;
	font-size: 1.5rem;
}

div.subjects > a {
	display: block;
	padding: 5px 0px 5px 20px;
	color: black;
}

div.subjects > a:hover {
	background-color: SteelBlue;
	text-decoration: none;
}

/* Content */
footer {
	padding: 30px;
	font-size: 0.85rem;
	background-color: SlateBlue;
	color: white;
	margin-bottom: 0px;
	margin-left: 0px;
}

footer a {
	color: #fff;
}

select {
	width: 100%;
	padding: 12px;
	margin: 8px 0px;
}

a {
	color: dodgerblue;
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
	color: dodgerblue;
}

/* Articles */
img.center {
	display: block;
	margin: auto;
}

p.titled {
	font-size: 1.5rem;
	font-weight: bold;
	margin-bottom: 5px;
}

/* cards */
.card {
	border: 2px solid #777;
	border-radius: 10px;
	box-shadow: 4px 5px 3px #777;
	padding: 20px;
	color: #222;
}

.card > i {
	font-size: 3rem;
}

.card-mini {
	display: inline-block;
	width: 220px;
	margin: 0px 20px 30px 0px;
}

.card p.title {
	margin: 0px;
	display: inline-block;
	font-weight: normal;
	font-size: 22px;
}

.card-full {
	display: block;
	margin-bottom: 10px;
}

a.card {
	text-decoration: none;
	font-size: 1.5rem;
}

/* buttons */
.button {
	display: inline-block;
	border: 0px;
	padding: 10px 15px;
	border-radius: 5px;
	color: #fff;
	margin: 10px 0px;
	font-size: 1rem;
	cursor: pointer;
}

.button:hover {
	text-decoration: none;
	color: #fff;
}

.button-primary {
	background-color: #09f;
}

.button-primary:hover {
	background-color: #06f;
}