Get your own website Result Size: 625 x 565
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<!DOCTYPE html>
<html>
<head>
<style>
#container {
  position: relative;
  width: 60%;
  aspect-ratio: 3/2;
  margin: auto;
  border: solid black 2px;
}
#leftDiv {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 25px;
  z-index: 1;
  background-color: rgba(0, 0, 0, 0.8);
  color: white;
  writing-mode: vertical-lr;
  text-orientation: upright;
}
#imgDiv {
  position: absolute;
  inset: 0 0 0 0;
  padding-left: 40px;
  overflow-x: scroll;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  white-space: nowrap;
  scroll-padding-left: 30px;
}
      
#imgDiv > img {
  height: 95%;
  margin: 2px;
  scroll-snap-align: none start;
}