html,
body {
	margin: 0;
	height: 100%;
}

body {
	background-image: url(./assets/images/time_bg.jpg);
	background-position: bottom;
	background-size: cover;
	background-repeat: no-repeat;
}

.header {
	position: fixed;
	display: block;
	width: 100%;
	top: 0px;
	left: 0px;
	background-image: url(./assets/images/time_header2.png);
	background-size: 100% 100%;
	background-repeat: no-repeat;
}
.header::before {
	content: "";
	display: block;
	width: 100%;
	padding-bottom: calc(100% * 146 /  640);
}

.stamp {
	position: absolute;
	display: none;
}