html {
	font-size: 16px;
	background-color: #547471;
	color: #333;
}
body {
	font-family: arial;
	width: 800px;
	margin: 1em auto;
	background-color: #f0f0f0;
	color: #333;
	padding: 2em;
}

h1,
h2 {
	color: #547471;
}

h1>span.surtitre {
	display: block;
	font-size: smaller;
}

figure {
	margin: 0;
	float: left;
	width: 15em;
	padding: 1em;
	margin-right: 1em;
}

figure>img {
	width: 100%;
}

figure>figcaption {
	font-weight: bold;
	text-align: center;
}

p {
	text-align: justify;
}

p.intro {
	font-weight: bold;
	font-style: italic;
}

div.source {
	margin-top: 2em;
	padding-top: 1em;
}

div.source:before {
	content: "";
	position: absolute;
	width: 25%;
	margin-top: -.5em;
	border-top: 2px solid #547471;
}