body {
	height              : 100vh;
	background-image    : url('../IMAGE/BACKGROUND/page404.jpg');
	background-size     : contain;
	background-position : center;
	background-repeat   : no-repeat;
}
article {
	padding-top : 86vh;
}
article > .btn {
	padding-left  : 7vw;
	padding-right : 7vw;
}