css/css-display/display-none-inline-img.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test: display: none then inline on img</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-display-3/#valdef-display-inline">
<link rel="match" href="display-none-inline-img-ref.html">
<html class="reftest-wait">
<style>
.carousel {
  position: relative;
  overflow: hidden;
  height: 300px;
}

.scroller {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: auto;
}

.slides {
  width: 200%;
  display: flex;
}

.slide {
  flex: 0 0 50%;
  contain:  paint;
}

img {
  width: 300px;
  height: 250px;
}
</style>

<div class="carousel">
  <div class="scroller">
    <div class="slides">
      <div class="slide">
        <img id="image" src="/images/green-256x256.png">
      </div>
      <div class="slide">
        <img>
      </div>
    </div>
  </div>
</div>

<script>

function toggleDisplay() {
  var img = document.getElementById("image");
  img.style.display = img.style.display == 'none' ? 'inline' : 'none';
}

window.onload = () => {
  requestAnimationFrame(() => {
    toggleDisplay();
    requestAnimationFrame(() => {
      toggleDisplay();
      document.documentElement.classList.remove("reftest-wait");
    });
  });
};
</script>
</html>