    <br />
      <br />
      <br />
      <h3>Custom example:</h3>
      <div class="cssonly-image-comparison">
        <div style="background-color: red; mix-blend-mode: lighten;"></div>
        <div>
          <img src="https://www.w3schools.com/howto/img_forest.jpg" />
        </div>
      </div>
    </div>
  </div>
</body>

</html>
