css/css-break/fieldset-001.html

<!DOCTYPE html>
<html><head>
<title>CSS Test: fragmenting a fieldset in multicol layout</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<link rel="help" href="https://drafts.csswg.org/css-break/#valdef-box-decoration-break-slice">
<link rel="match" href="fieldset-001-ref.html">
<style>
  * {
    color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
  }
  body { width:600px; height:600px; }

  .cols { columns:3; background:grey; margin-bottom: 10px; height:80px; column-fill:auto; }
  .c2 { column-count:2; height:120px; }
  legend { background:black; width:100px; height:19px; }
  fieldset {
    background-color: lightgrey;
    border: solid;
    border-width: 6px 3px 10px 7px;
    margin: 3px 10px 7px 5px;
  }
  fieldset, legend {
    background-clip: content-box;
    padding: 10px 7px 20px 3px;
  }
  fieldset.sized {
    height: 108px;
  }
  c { display:block; background:blue; opacity:.5; height:108px; }
</style>
</head>
<body>
  <div class="cols">
    <fieldset><legend></legend><c></c></fieldset>
  </div>
  <div class="cols c2">
    <fieldset><legend></legend><c></c></fieldset>
  </div>
  <div class="cols">
    <fieldset class="sized"><legend></legend><c></c></fieldset>
  </div>
  <div class="cols c2">
    <fieldset class="sized"><legend></legend><c></c></fieldset>
  </div>
</body>
</html>