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                <div class="poster">
  <img src="" alt="" class="poster__c3po-profile">
  <img src="" alt="" class="poster__c3po--eyes">
  <img src="" alt="" class="c3po__foreground">
  <img src="" alt="" class="poster__c3po--base-2">
  <img src="" alt="" class="poster__c3po--base-1">
  <img src="" alt="" class="poster__c3po--base">
  <img src="" alt="Star Wars" class="poster__title">

<div class="credit">
  <a class="credit__link" href="" target="_blank" rel="noopener noreferrer" title="Olly Moss">Poster By Olly Moss</a>


                :root {
  --beige: #fff2d7;
  --move-x: 0px;
  --move-y: 0px;

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #efefef;
  padding-top: 25px;

.poster {
  position: relative;
  width: 500px;
  height: 800px;
  background-color: var(--beige);
  box-shadow: 0px 30px 60px -20px rgba(0, 0, 0, 0.4);
  overflow: hidden;

.poster * {
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 500px;
  height: 800px;
  transition: all 0.01s linear;

.poster__title {
  z-index: 10;

.c3po__foreground {
  z-index: 4;

.poster__c3po--base-2 {
  z-index: 3;

.poster__c3po--base-1 {
  z-index: 2;

.poster__c3po--base {
  bottom: auto;
  top: 0;
  z-index: 1;

.poster__c3po--eyes {
  z-index: 2;
  bottom: auto;

// layers
@for $i from 7 through 1 {
  // i have less than i expected
  .poster img:nth-of-type(#{$i}) {
    transform: translateX(calc(var(--move-x) * #{-0.7*$i}))
      translateY(calc(var(--move-y) * #{-2*$i}));

.poster__c3po-profile {
  transform: translateX(0) translateY(0) !important;
  z-index: 11;

.credit {
  margin-top: 1em;

.credit__link {
  background-color: black;
  color: white;
  text-decoration: none;
  padding: 4px 6px;
  font-family: -apple-system, BlinkMacSystemFont, "San Francisco",
    "Helvetica Neue", Helvetica, Ubuntu, Roboto, Noto, "Segoe UI", Arial,
  font-size: 12px;
  font-weight: bold;
  line-height: 1.2;
  display: inline-block;
  border-radius: 3px;



                const poster = document.querySelector(".poster");
const posterDims = {
  w: poster.getBoundingClientRect().width,
  h: poster.getBoundingClientRect().height
const limit = {
  x: 15,
  y: 3

poster.addEventListener("mousemove", (e) => {
  const mouse = {
    x: e.pageX / 2,
    y: e.pageY
  const clamped = {
    x: (mouse.x / posterDims.w * limit.x - (limit.x / 2)),
    y: (mouse.y / posterDims.h * limit.y - (limit.y / 2))
  };"--move-x", clamped.x+'px');"--move-y", clamped.y+'px');

//device orientation doesn't seem to work on codepen