/*
Le Bouton retour haut de page
*/
#back-top {
	position: fixed;
	bottom: 57px;
	margin-left: 92%;
}
#back-top span {
	width: 60px;
	height: 60px;
	display: block;
	background-color: #c9bfb5;
	background-image: url(nav.png);
	background-repeat: no-repeat;
	background-position: center;
	-moz-transition: all 200ms ease 0s;
	cursor: pointer;
	opacity: 0.1;
	filter: alpha(opacity=10);
	-webkit-border-radius: 10px;
	-moz-border-radius: 10px;
	border-radius: 10px;
}
#back-top a:hover span {
	background-color: #fff;
	opacity: 0.4;
	filter: alpha(opacity=40);
}