.body .html .header .h1{
	margin: 0px;
	padding: 0px;
}

body{
	font-family: helvetica;
}

header,body,html{
	width:100%;
	height:100%;
}

header{
	background-image: url("images/espace.jpg");
	background-size:cover;
	color:white;
}

.wrapper{
	display: table;
	width:100%;
	height:100%;
}
.content{
	display: table-cell;
	text-align: center;
	vertical-align: middle;
	text-shadow: 1px 1px 10px black;
}

h1{
	font-size: 65px;
}
.subtitle{
	font-size: 23px;
}

main{
	max-width: 650px;
	margin: 80px auto;
}

.btn{
	font-size: 30px
}