<!doctype html>
<title>CSS Overflow Test: ::scroll-button() can be created and removed dynamicaly</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-buttons">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<style>
#carousel {
  overflow: hidden;
  width: 100px;
  height: 100px;
}

#carousel div {
  background: green;
  width: 100px;
  height: 100px;
}

.scroll-buttons::scroll-button(right) {
  content: "r";
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="carousel">
  <div></div>
<div>
<script>
  carousel.offsetTop;
  carousel.className = "scroll-buttons";
  carousel.offsetTop;
  carousel.className = "";
</script>