body {
	width: 100%;
	margin: auto;
	padding: 0;
	display: block;
	font-family: Helvetica, Arial;
	color: grey;
}

header {
	background-image: url("../images/tree.png");
	height: 500px;
	background-color: #3dd0ac;
	background-size: 30%;
	background-repeat: no-repeat;
	box-shadow: 0 0 20px rgba(0,0,0,.2);
}

nav {
	position: relative;
	left: 50%;
	transform: translate(-50%);
	width: 800px;	
	padding: 5px;
}

nav li {
	padding-left: 20px;
	padding-right: 20px;
	display: inline-block;
}

nav li a {
	padding: 8px;
}

nav li a:link {
	text-transform: uppercase;
	text-decoration: none;
	color: white;
}


nav li a:visited {
	text-transform: uppercase;
	color: white;
	text-decoration: none;
}

nav li a:hover {
	text-transform: uppercase;
	text-decoration: underline;
	color: black;
}

nav li a:active {
	border-radius: 5px;
	text-decoration: none;
	color: #3dd0ac;
	text-transform: uppercase;
	background-color: white;
}

#trans {
	width: 47px;
	padding: 5px;
	background-color: white;
	border-radius: 5px;
	opacity: 0.8;
	position: fixed;
	left: -2px;
	top: 50%;
	height: 45px;
}

#trans img {
	position: absolute;
	left: 50%;
	top:50%;
	transform: translate(-50%,-50%);
	height: 90%;
	width: 90%;
}

.titre {
	color: white;
	font-weight: bold;
	text-transform: uppercase;
	font-size: 45px;
	position: absolute;
	margin-top: 350px;
	width: 100%;
	text-align: center;
}

#trans:hover {
	height: 50px;
	width: 50px;
}

section {
	transform: translate(-50%);
	padding: 10px;
	width: 760px;
	position: relative;
	left: 50%;
}

section h1 {
	font-size: 45px;
	letter-spacing: 4px;
	text-align: center;
}

section iframe {
	position: relative;
	left: 50%;
	transform: translate(-50%);
	padding-bottom: 20px;
}

section img {
	position: relative;
	left: 50%;
	transform: translate(-50%);
	padding: 30px;
}

section p {padding: 15px;}

footer {
	padding: 10px;
	height: 40px;
	background-color: #3dd0ac;
	box-shadow: 0 0 20px rgba(0,0,0,.2);
	text-align: center;
	color: white;
}