Blitz - WPT: scroll-marker-group-013.html

wpt / css / css-overflow / scroll-markers / scroll-marker-group-013.html

/css/css-overflow/scroll-markers/scroll-marker-group-013.html

<!DOCTYPE html>
<title>Scroll marker group on multicol fieldset</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-5/#scroll-marker-group">
<link rel="help" href="https://html.spec.whatwg.org/#anonymous-fieldset-content-box">
<link rel="match" href="scroll-marker-group-013-ref.html">
<style>
  #scroller {
    overflow: hidden;
    columns: 2;
    column-fill: auto;
    padding: 0;
    gap: 0;
    width: 400px;
    height: 100px;
    scroll-marker-group: before;
  }

  #scroller::scroll-marker-group {
    display: flex;
    height: 200px;
    background: gray;
  }

  #scroller>div::scroll-marker {
    display: block;
    width: 25px;
    height: 50%;
    content: "";
    background: yellow;
  }

  fieldset {
    border: 3px solid black;
  }
</style>
<p>There should be a yellow square inside a gray box below, and below that, a
  fieldset with a legend. The text "first" and "second" should be seen
  inside.</p>
<fieldset id="scroller">
  <legend>Legend</legend>
  <div style="break-before:column;">first</div>
  <div style="break-before:column;">second</div>
  <div style="break-before:column;">third</div>
  <div style="break-before:column;">fourth</div>
</fieldset>

/css/css-overflow/scroll-markers/scroll-marker-group-013-ref.html

<!DOCTYPE html>
<style>
  #scroller {
    overflow: hidden;
    columns: 2;
    column-fill: auto;
    padding: 0;
    gap: 0;
    width: 400px;
    height: 100px;
  }

  #scroller::scroll-marker-group {
    display: flex;
    height: 200px;
    background: gray;
  }

  #scroller>div::scroll-marker {
    display: block;
    width: 25px;
    height: 50%;
    content: "";
    background: yellow;
  }

  fieldset {
    border: 3px solid black;
  }
</style>
<p>There should be a yellow square inside a gray box below, and below that, a
  fieldset with a legend. The text "first" and "second" should be seen
  inside.</p>
<div style="height:200px; background:gray;">
  <div style="width:100px; height:100px; background:yellow;"></div>
</div>
<fieldset id="scroller">
  <legend>Legend</legend>
  <div style="break-before:column;">first</div>
  <div style="break-before:column;">second</div>
  <div style="break-before:column;">third</div>
</fieldset>