html, body {
	background: #f8f8f8;
	color: #2d3436;
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-size: normal;
	line-height: 1.5;
}

a {
	color: #1a1a1a;
	border-bottom: solid 1px #b2bec3;
	text-decoration: none;
}

a:hover {
	border-color: #1a1a1a;
}

img {
	max-width: 100%;
}

button {
	border-radius: 5px;
	border: solid 1px #b2bec3;
	cursor: pointer;
	display: inline-block;
	padding: 0.2em 0.5em;
}

button:hover {
	background: #dfe6e9; 	
	border-color: #b2bec3;
}

button.selected {
	border-color: #2d3436;
}

header, main, footer {
	padding: 4em 5%;
}

header {
	background: #2d3436;
	color: white;
	text-align: center;
}

header h1 {
	margin-bottom: 0;
}

.information {
	background: #dfe6e9;
	margin-bottom: 4em;
	padding: 2em;
}

nav {
	margin-bottom: 4em;
}

nav span {
	display: block;
	font-size: 0.9em;
	margin-bottom: 1em;
}

nav button {
	margin: 0 0.5em 1em 0;
}

article {
	margin-bottom: 6em;
}

.article-details {	
	border-bottom: solid 2px #dfe6e9;
	font-size: 0.9em;
	padding-bottom: 1em;
}

.article-details div:first-child {
	margin-bottom: 0.5em;
}

#notice {
	font-weight: bold;
	text-align: center;
}

footer {
	background: #dfe6e9;
	text-align: center;
}

footer p {
	margin-top: 0;
}

@media only screen and (min-width : 992px) {
	.article-details {
		align-items: center;
		display: flex;
		justify-content: space-between;
	}

	.article-details div:first-child {
		margin-bottom: 0;
	}

	header, main, footer {
		padding: 4em 25%;
	}
}

@media only screen and (min-width : 1200px) {
	header, main, footer {
		padding: 4em 30%;
	}
}