<article>
	<section class="one">
		<p>section01</p>
	</section>

	<section class="two">
		<p>section02</p>
	</section>
</article>

<article>
	<section class="three">
		<p>section03</p>
	</section>

	<section class="four">
		<p>section04</p>
	</section>

	<section class="five">
		<p>section05</p>
	</section>
</article>

* {
	box-sizing: border-box;
}
body {
	min-height: 100vh;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
}
h1 {
	font-size: 20px;
	color: #fff;
	background: #333;
	padding: 10px 15px;
	margin: 0;
}
p {
	font-size: 30px;
}
article {
	width: 100%;
}
section {
	width: 100%;
	height: 100vh;
	background: #fff;
	display: flex;
	justify-content: center;
	align-items: center;
}
section.two {
	background: #a0dde2;
	z-index: 2;
}
section.three {
	background: #e2a0b4;
	z-index: 3;
}
section.four  {
	background: #eec496;
	z-index: 4;
}
section.five {
	background: #a0e2c2;
	z-index: 5;
}


section {
	position: sticky;
	top: 0;
}