</textarea>
</div>

<script>
// Set author-level CSS that matches UA style, but don't use the 'revert' value.
const elements = document.querySelectorAll('#container > *');
const props = "background-size".split(",");
for (const el of elements) {
  for (const prop of props) {
    el.style.setProperty(prop, getComputedStyle(el).getPropertyValue(prop));
  }
}
</script>
