<div class="heading">
	Scroll Down
</div>
<div class="box" style="background-image: url(https://images.unsplash.com/photo-1711924847907-498771a92bde?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTM5MjI5OTl8&ixlib=rb-4.0.3&q=85);"></div>
<div class="box" style="background-image: url(https://images.unsplash.com/photo-1585110396000-c9ffd4e4b308?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTM5MjM0MjF8&ixlib=rb-4.0.3&q=85);"></div>

<div class="box" style="background-image: url(https://images.unsplash.com/flagged/photo-1557665159-2dfaf0ab25ac?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTM5MjM0MjF8&ixlib=rb-4.0.3&q=85);"></div>

<div class="box" style="background-image: url(https://images.unsplash.com/photo-1592194996308-7b43878e84a6?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTM5MjM0NTV8&ixlib=rb-4.0.3&q=85);"></div>

body {
	font-family: tahoma;
	margin: 0;
	box-sizing: border-box;
	line-height: 1.6;
	font-size: calc(max(0.8vw, 4px) + max(0.8vh, 4px));
	color: #000;
	transition: 0.2s all;
	font-size: 1rem;
}


.heading {
	display: flex;
	justify-content: center;
	align-items: center;
	flex-direction: column;
	text-align: center;
	padding: 10vh 0;
	text-transform: uppercase;
	font-size: 2rem;
	font-weight: bold;
	box-sizing: border-box;
}


.box {
		top: -30%;
	position: sticky;
	z-index: 0;
	background-color: grey;
	background-image: url(https://images.unsplash.com/photo-1711924847907-498771a92bde?crop=entropy&cs=srgb&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE3MTM5MjI5OTl8&ixlib=rb-4.0.3&q=85);
	background-size: cover;
	background-position: center center;
	background-repeat: no-repeat;
	\\ background-attachment: fixed;
	height: 130vh;
	min-height: 500px;
}