Blitz - WPT: scroll-marker-dynamic.html

wpt / css / css-overflow / scroll-markers / scroll-marker-dynamic.html

/css/css-overflow/scroll-markers/scroll-marker-dynamic.html

<!DOCTYPE html>
<title>CSS Overflow Test: ::scroll-marker dynamic creation and removal</title>
<link rel="match" href="scroll-marker-dynamic-ref.html">
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-pseudo">
<style>
  #scroller {
    width: 600px;
    height: 300px;
    overflow: scroll;
    scroll-marker-group: after;
  }

  #scroller div {
    width: 600px;
    height: 300px;
    margin-bottom: 20px;
    background: green;
  }

  #scroller::scroll-marker-group {
    border: 3px solid black;
    padding: 5px;
    height: 20px;
    display: block;
  }

  #scroller div::scroll-marker {
    content: "";
    width: 10px;
    height: 10px;
    background-color: blue;
    border-radius: 100%;
    display: inline-block;
  }

  #scroller div::scroll-marker:target-current {
    background-color: aqua;
  }
</style>
<div id="scroller">
  <div id="first"></div>
</div>
<script>
  let div = document.createElement("div");
  scroller.appendChild(div);
  document.documentElement.offsetTop;
  scroller.removeChild(first);
</script>

/css/css-overflow/scroll-markers/scroll-marker-dynamic-ref.html

<!DOCTYPE html>
<title>CSS Test Reference: ::scroll-marker dynamic creation and removal</title>
<style>
  #scroller {
    width: 600px;
    height: 300px;
    overflow: scroll;
  }

  #scroller div {
    width: 600px;
    height: 300px;
    margin-bottom: 20px;
    background: green;
  }

  #scroll-marker-group {
    border: 3px solid black;
    padding: 5px;
    height: 20px;
    display: block;
  }

  #scroll-marker {
    width: 10px;
    height: 10px;
    background-color: aqua;
    border-radius: 100%;
    display: inline-block;
  }
</style>
<div id="scroller">
  <div></div>
</div>
<div id="scroll-marker-group">
  <div id="scroll-marker"></div>
</div>