body {
	background-color: #34495E;
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-size: 16px;
}

h1 {
	color: white;
}

a,
a:hover {
	color: inherit;
	text-decoration: underline;
}

.center {
	text-align: center;
}
pre {
	font-weight: bold;
}
section {
	width: 45em;
	margin: 0 auto;
	background-color: rgba(255, 255, 255, 0.7);
	padding: 1em;
	margin-bottom: 1em;
}

.btn {
	display: inline-block;
	text-align: center;
	border: none;
	border-radius: 4px;
	background-color: #2C3E50;
	color: white;
	padding: 7px 15px;
	font-size: 1em;
	user-select: none;
	cursor: pointer;
	transition: background-color 250ms ease;
	outline: none;
  	border: none;
}

.btn:hover {
	background-color: #2980B9;

}