<div class="form">
  <label for="object-fit">object-fit:</label>
  <select name="object-fit" id="object-fit">
    <option value="none">none</option>
    <option value="fill">fill</option>
    <option value="cover">cover</option>
    <option value="contain">contain</option>
    <option value="scale-down">scale-down</option>
  </select>
</div>
<div class="container">
  <img class="ltr" src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123941/sunset.jpg" />
</div>

<div class="actions">
  <div class="control">
    <label for="position-x">object-position-x:</label>
    <input type="range" id="position-x" name="position" min="-100" max="100" step="5" value="0" />
    <span id="output__x--per"></span>
  </div>
  <div class="control">
    <label for="position-y">objec-position-y:</label>
    <input type="range" id="position-y" name="position" min="-100" max="100" step="5" value="0" />
    <span id="output__y--per"></span>
  </div>
</div>
@import url("https://fonts.googleapis.com/css?family=Gochi+Hand");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  width: 100vw;
  min-height: 100vh;
  margin: 0;
  background-color: #291642;
  font-family: "Gochi Hand", sans-serif;
  font-size: 100%;
  letter-spacing: 0.1rem;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-blend-mode: hue;
}

.actions {
  padding: 3vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.5);
  width: 100%;
  font-size: 1.5rem;
  margin-top: auto;
}

.control {
  margin: 0 5px;
}

.container {
  width: 540px;
  height: 480px;
  border: 10px solid black;
  background: #09f;
  margin-top: auto;
  position: relative;
}

img {
  width: 100%;
  height: 100%;
}

:root {
  --position-x: 0;
  --position-y: 0;
  --object-fit: none;
}

img {
  object-fit: var(--object-fit);
  object-position: var(--position-x) var(--position-y);
}

.form {
  width: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  padding: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-sizee: 1.2rem;
}
View Compiled
const containerElement = document.querySelector(".container");
const imgElement = document.querySelector("img");
const objectFitSelectElement = document.getElementById("object-fit");

const imgElementRectWidth = imgElement.getBoundingClientRect().width;
const imgElementRectHeight = imgElement.getBoundingClientRect().height;

console.log(imgElementRectWidth);

const imgElementWidth = imgElement.naturalWidth;
const imgElementHeight = imgElement.naturalHeight;

const xRange = document.getElementById("position-x");
const yRange = document.getElementById("position-y");

const outputXPer = document.getElementById("output__x--per");

const outputYPer = document.getElementById("output__y--per");

const xRangeValue = xRange.value;
const yRangeValue = yRange.value;

outputXPer.textContent = `${xRangeValue}%`;
outputYPer.textContent = `${yRangeValue}%`;

const rootElement = document.documentElement;

xRange.addEventListener("change", (etv) => {
  const rangeValue = etv.target.value;
  rootElement.style.setProperty("--position-x", `${rangeValue}%`);
  outputXPer.textContent = `${rangeValue}%`;
});

yRange.addEventListener("change", (etv) => {
  const rangeValue = etv.target.value;
  rootElement.style.setProperty("--position-y", `${rangeValue}%`);

  outputYPer.textContent = `${rangeValue}%`;
});

objectFitSelectElement.addEventListener("change", (etv) => {
  rootElement.style.setProperty("--object-fit", `${etv.target.value}`);
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.