body {
	background: url(Background.png);
	background-repeat: no-repeat;
	background-size: auto;
	margin: 0;
	font-family:Helvetica;
}

div.form {
	position: absolute;
	top: 55%;
	left: 50%;
	transform: translate(-50%, -50%);
	Background-color: lightgrey;
	Border:solid black;
	width: 500px;
	height: 385px;
	padding:7px 25px;
}
.btn_envoyer{
	Background-color: #F2BB3D;
	Border: none;
	padding: 7px 15px;
	width:200px;
}