div#titre {
	background: linear-gradient(to bottom, transparent, 95%, white),
		url("../../img/biologie_marine-a74a017e28f5c429f7458edddcbdf395.jpg");
	background-position: center;
	background-repeat: no-repeat;
	background-size: 100%;
}

div#presentation {
	padding: 70px 0 70px 160px;
}

div#presentation div.texte20 {
	margin-top: 29px;
}

div#presentation div.texte20 ul {
	font-weight: 700;
	margin-top: 29px;
}

div.illustration {
	margin: auto;
	width: 541px;
}

div#btn {
	margin-top: 81px;
	margin-left: 10%;
	margin-right: 10%;
}

div#btn div.box {
	margin: auto;
	width: 432px;
}

div#btn div.box button.usvpBtn {
	height: 93px;
	margin: auto;
	width: 432px;
}

div#btn div.box button.usvpBtn span {
	width: 354px;
}

div#btn div.box button.usvpBtn img {
	margin-top: 20px;
}

div#diapos {
	margin-top: 24px;
	margin-left: 10%;
	margin-right: 10%;
}

div#allerPlusLoin {
	margin-bottom: 109px;
}

div#allerPlusLoin div.titre {
	margin-left: 159px;
	margin-top: 81px;
}

div#allerPlusLoin div.liens-internes {
	margin-top: 49px;
}

div.diapo {
	height: 371px;
	margin: auto;
	margin-top: 47px;
	width: 603px;
}

img.diapo {
	height: 371px;
	width: 603px;
}

div.details div.detail div.detail-titre {
	font-size: 30px;
	font-style: Bold;
	font-variant: small-caps;
	font-weight: 700;
	letter-spacing: -1%;
	line-height: 110%;
	margin: auto;
	padding-top: 20px;
	text-align: center;
	width: 290px;
}