2DScroller Spike

dabblet.css

/**
 * 2DScroller Spike
 */
 
 body { --value: 100; }
 
.item1, .item2 { box-sizing: border-box; }

section {
	position: relative;
	border: 4px solid #d0d;
	width: 400px;
	height: 100px;
	left: 400px;
	top: 20px;
	overflow: hidden;
}

div[class^=item] {
	width: 200px; height: 100px;
	display: flex;
	justify-content: center;
	align-items: center;
	color: #fff;
	font-size: 3em;
}

div[class^=band] { position: absolute; }

.band1 {
	z-index: 2;
	background: #404;
	width: 200px;
	
	display: flex;
	flex-direction: column;
	
	--val1: calc(var(--value) * -1px);
	top: var(--val1, 200px);
}

.band2 {
	--val2: calc((0 - var(--value) + 200) * 1px);
	left: var(--val2, 200px);
	background: #8c8;
	display: flex;
	max-width: max-content;
}

dabblet.html

<section>
<div class="band1">
	<div class="item1">[1]</div>
	<div class="item1">[2]</div>
	<div class="item1">[3]</div>			
</div>

<div class="band2">
	<div class="item2">[A]</div>
	<div class="item2">[B]</div>
	<div class="item2">[C]</div>
</div>

</section>
<input type="range" min="0" max="600" value="0">

dabblet.js

const rng = document.querySelector('input[type=range]');

rng.addEventListener('change', function(event) {
	const val = rng.value;
	document.body.style.setProperty('--value', val);
});

settings.json

{"view":"separate","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}