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HTML 

              
                <!-- 
Wall Poster Animation
https://codepen.io/wakana-k/pen/MWZbVxm
Copyright (c) 2023 by Wakana Y.K. @wakana-k
-->

<div id="background">
  <div id="blank"></div>

  <label><input type="radio" name="photo" checked />
    <div class="outer" style="background-image:url(https://images.unsplash.com/photo-1620503374956-c942862f0372?&q=100&dpr=2&w=400);">
      <div class="inner">
        <p>Hello World</p>
      </div>
    </div>
  </label>
  <label><input type="radio" name="photo" />
    <div class="outer" style="background-image:url(https://images.unsplash.com/photo-1543848089-530aad06491a?&q=100&dpr=2&w=400);">
      <div class="inner">
        <p>Lorem Ipsum</p>
      </div>
    </div>
  </label>
  <label><input type="radio" name="photo" />
    <div class="outer" style="background-image:url(https://images.unsplash.com/photo-1550684848-fac1c5b4e853?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2OTQxODQ2NDZ8&ixlib=rb-4.0.3&q=100&dpr=2&w=400);">
      <div class="inner text3">
        <p>ART</p>
      </div>
    </div>
  </label>

  <div id="border"></div>
</div>

<main>
  <section>
    <div>
      <p id='arrow'>&raquo;</p>
    </div>
  </section>
  <section>
    <div>
      <h1>Wall Poster Animation</h1>
    </div>
  </section>
  <section>
    <div>
      <p></p>
    </div>
  </section>
  <section>
    <div>
    </div>
  </section>
  <section>
    <div>
      <h2>Photo credits</h2>
      <p><br></p>
      <ul>
        <li>Kam Idris - <a target="_blank" href="https://unsplash.com/photos/_HqHX3LBN18">brown wooden framed yellow padded chair</a></li>
        <li>Steve Johnson - <a target="_blank" href="https://unsplash.com/photos/4Djs1vdYov4">multicolored abstract painting</a></li>
        <li>Pawel Czerwinski - <a target="_blank" href="https://unsplash.com/photos/vI5XwPbGvmY">white and blue smoke illustration</a></li>
        <li>Rodion Kutsaiev - <a target="_blank" href="https://unsplash.com/photos/pVoEPpLw818">a close up of water droplets on a window</a></li>
      </ul>
      <p><br><b>on <a target="_blank" href="https://unsplash.com/">Unsplash</a>.</b></p>
      <p><br></p>
      <p>Thanks!</p>
    </div>
  </section>
  <section>
    <div>
      <p></p>
    </div>
  </section>
  <section>
    <div>
      <p></p>
    </div>
  </section>
  <footer>
    <a href="https://codepen.io/wakana-k/">@wakana-k</a>
  </footer>
</main>
!

CSS 

              
                @import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&display=swap");
:root {
  --bg_width: 2000px;
  --bg_height: 1765px;

  --gap_left: 958px;
  --gap_top: 345px;

  --clip_w: 292px;
  --clip_h: 435px;

  --ratio: 0;
  --centerShift_x: calc((100vw - var(--bg_width) * var(--ratio)) / 2);
  --centerShift_y: calc((100vh - var(--bg_height) * var(--ratio)) / 2);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body,
#background {
  overscroll-behavior-x: none;
  overscroll-behavior-y: none;
}
html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  font-variant-ligatures: none;
  -webkit-font-variant-ligatures: none;
  text-rendering: optimizeLegibility;
  -moz-osx-font-smoothing: grayscale;
  font-smoothing: antialiased;
  -webkit-font-smoothing: antialiased;
  text-shadow: rgba(0, 0, 0, 0.01) 0 0 1px;
}
body {
  position: relative;
  color: #000;
  font-family: "Atkinson Hyperlegible", sans-serif;
  font-size: 20px;
  font-weight: 400;
  width: 100vw;
  min-height: 100vh;
  text-align: center;
  line-height: 1;
  overflow-x: hidden;
}
#background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-image: url("https://images.unsplash.com/photo-1586023492125-27b2c045efd7?crop=faces,entropy&ixid=M3wzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2OTQwMTE4Mjl8&ixlib=rb-4.0.3&q=100&w=2000");
  background-size: cover;
  background-position: center;
  z-index: -1;
}
main {
  position: relative;
}
section {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  min-height: 100vh;
  overflow: visible;
}
h1,
h2,
p,
a,
li {
  /*
	text-shadow: -1px -1px 0px rgba(255, 255, 255, 0.8),
		1px 1px 0px rgba(255, 255, 255, 0.8), 1px -1px 0px rgba(255, 255, 255, 0.8),
		-1px 1px 0px rgba(255, 255, 255, 0.8);
*/
  filter: drop-shadow(1px 0px 0px rgba(255, 255, 255, 0.8))
    drop-shadow(0px 1px 0px rgba(255, 255, 255, 0.8))
    drop-shadow(-1px 0px 0px rgba(255, 255, 255, 0.8))
    drop-shadow(0px -1px 0px rgba(255, 255, 255, 0.8));
}
h1 {
  font-size: 33px;
}
h2 {
  font-size: 30px;
}
a {
  color: blue;
  text-decoration: none;
}
ul {
  list-style: none;
  max-width: 80vw;
  overflow-x: hidden;
  overflow-y: visible;
}
li {
  list-style: none;
  font-size: 20px;
  text-align: left;
  margin: 20px 0;
}
li a {
  font-size: 18px;
  filter: unset;
}
p a {
  filter: unset;
}
img,
canvas,
input[type="radio"],
label {
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
  pointer-events: none;
}
input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  display: none;
}
#background > * {
  position: absolute;
  top: calc(var(--centerShift_y) + var(--gap_top) * var(--ratio));
  left: calc(var(--centerShift_x) + var(--gap_left) * var(--ratio));
  width: calc(var(--clip_w) * var(--ratio));
  height: calc(var(--clip_h) * var(--ratio));
}
#blank {
  background: white;
}
#border {
  box-shadow: inset 1px 1px 1px rgba(120, 120, 120, 0.1),
    inset -1px -1px 1px rgba(0, 0, 0, 0.1);
}
.outer {
  position: absolute;
  top: 0;
  left: 0;
  width: calc(var(--clip_w) * var(--ratio));
  height: calc(var(--clip_h) * var(--ratio));
  object-fit: cover;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: visible;
  filter: unset;
  opacity: 0;
  transition: opacity 2s;
  background-color: white;
  background-position: center;
  background-size: auto
    calc(max(var(--clip_w), var(--clip_h)) * var(--ratio) * 2); /* 必要に応じて調整 */
  background-repeat: no-repeat;
  will-change: background-position;
  transform: translateZ(0);
}
input:checked + * {
  opacity: 1;
}
.outer * {
  filter: unset;
}
.inner {
  position: relative;
  margin: 3px;
  overflow: hidden;
  color: white;
  font-size: calc(var(--clip_w) * var(--ratio) / 3.5);
  font-weight: 700;
  overflow-wrap: break-word;
  mix-blend-mode: difference;
}
.inner p {
  text-shadow: -0.5px -0.5px 0px rgba(0, 0, 0, 0.3),
    0.5px 0.5px 0px rgba(0, 0, 0, 0.3);
}
.text3 {
  font-size: calc(var(--clip_w) * var(--ratio) / 2.8);
}
#background label:nth-of-type(odd) .outer {
  animation: bg1 8s ease-in-out infinite alternate both;
}
#background label:nth-of-type(even) .outer {
  animation: bg2 9s ease-in-out infinite alternate both;
}
#background label:nth-of-type(3n) .outer {
  animation-direction: alternate-reverse;
}
footer a {
  color: #000;
}
#arrow {
  position: relative;
  top: 40vh;
  left: 8px;
  font-size: 60px;
  font-weight: 400;
  text-shadow: unset;
  transform-origin: center center;
  transform: rotate(90deg);
  animation: arrow 1s ease infinite;
  filter: invert(1);
  mix-blend-mode: difference;
}
@keyframes arrow {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes bg1 {
  0% {
    background-position: 0% 0%;
  }
  100% {
    background-position: 100% 100%;
  }
}
@keyframes bg2 {
  0% {
    background-position: 100% 0%;
  }
  100% {
    background-position: 0% 100%;
  }
}
!

JS 

              
                /*
Wall Poster Animation
https://codepen.io/wakana-k/pen/MWZbVxm
Copyright (c) 2023 by Wakana Y.K. @wakana-k 
*/
"use strict";
console.clear();

(function () {
  const timer = 3900;

  const root = document.querySelector(":root");
  const bg_width = parseFloat(
    window.getComputedStyle(root).getPropertyValue("--bg_width")
  );
  const bg_height = parseFloat(
    window.getComputedStyle(root).getPropertyValue("--bg_height")
  );

  let items;
  let now = 0;
  let timerId;

  function resize() {
    const ww = window.innerWidth;
    const hh = window.innerHeight;

    // fit size : cover
    let hRatio = ww / bg_width;
    let vRatio = hh / bg_height;
    let ratio = Math.max(hRatio, vRatio);
    root.style.setProperty("--ratio", ratio);
    /*
		// cssで計算した方が早いのでそっちで処理
		let centerShift_x = (ww - bg_width * ratio) / 2;
		let centerShift_y = (hh - bg_height * ratio) / 2;
		root.style.setProperty("--centerShift_x", centerShift_x + "px");
		root.style.setProperty("--centerShift_y", centerShift_y + "px");
		*/
  }
  resize();
  window.onresize = resize;

  function slider() {
    if (now >= items.length) now = 0;
    items[now].checked = true;
    now++;
  }
  window.onload = () => {
    items = document.querySelectorAll("input[name='photo']");
    now++;
    timerId = setInterval(slider, timer);
  };
})();
!
999px

Console